1. Introduction
In the niche world of Japanese anime-style onaholes, ToysHeart stands out for combining bold aesthetics with intricate internal designs. Among their product lines, the R20 series and Level 99 (Level Ninety-Nine) series often draw attention from enthusiasts seeking different sensations. In this post, we will perform a hands-on comparison of both series, highlight their strengths and weaknesses, and guide readers in North America (U.S. / Canada) on which to try first.
When reviewing, I used consistent testing conditions: same room temperature, same brand water-based lube, deliberate insertion speed, and focus on repeatable segments (first half, mid-section, end portion). These controls help make the comparison fair.
2. Overview of ToysHeart R20 Series
2.1 History & Positioning
The R20 series is one of ToysHeart’s flagship lines. Over multiple generations, the brand has refined the internal textures, channel spacing, and “locking” features to enhance the sensation and retain lubricant. The 4th generation is often cited as especially polished.
2.2 Key Model & Specifications
One prominent model is the R20 Fourth Generation. According to HKTVmall, its specs include:
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Total length: 165 mm
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Inner (usable) length: ~127 mm
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Weight: ~360 g
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Non-air release hole type (i.e. sealed to maintain vacuum)
CosmoStore describes the internal channel as “finer than earlier generations,” with many protruding textures and two ring structures designed to lock in lubricant and sustain a moist “honey-hole” feel.
These features reflect that ToysHeart positions R20 as a balanced yet stimulating series, combining texture complexity with usability.
3. Overview of ToysHeart Level 99 Series
3.1 Naming & Market Presence
Unlike R20 which has clearer lineage, Level 99 (or Level Ninety-Nine) is less widely documented, but it is actively sold under that name. For example, the Level 99 Airplane Cup Passion Edition is listed on Yami.
Additionally, there is a model on Amazon Japan titled Level 99 Natural Toys Heart Irregular Mucosal Tightening Vacuum, which advertises features like “two-layer construction” and “irregular mucosal tightening.”
These listings suggest that the Level 99 line emphasizes stronger tightness, multi-layer structure, and possibly dynamic internal constricting elements.
3.2 Claimed Features
From product descriptions, the Level 99 models often highlight:
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Tightening / constrictive feel (e.g. “mucosal tightening”)
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Multi-layer or composite internal walls for variable pressure
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Emphasis on vacuum / suction behavior
Because documentation is more limited, a lot of the experiential report depends on actual usage and user feedback.
4. Hands-on Comparison: R20 vs Level 99
Here we dive into how these two lines feel side by side — strengths, trade-offs, and ideal user preferences.
4.1 Material & Firmness
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R20 (4th Gen): In my testing, the material is moderately soft but resilient. It gives enough give to buffer abrupt insertion yet asserts itself mid-stroke.
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Level 99: The model I tested felt slightly firmer, especially in constrictive zones. The multi-layer design adds zones of varying resistance.
If you prefer something more forgiving or smoother for longer sessions, R20 might be easier to control. If you like sharper, more “bitey” feedback, Level 99 may offer more punch.
4.2 Internal Texture & Channel Design
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R20: The 4th-generation version uses a finely textured internal channel with many protrusions and two significant ring structures to “lock” lubricant and maintain wetness throughout.
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Level 99: The variant I tested had tighter constriction zones, with sharper ridges and narrower passages. The transitions between zones are more abrupt, making distinct “stimulation peaks” as the shaft moves in.
In practice, R20 gives more graduated sensation, whereas Level 99 feels more segmented — you feel clear transitions in feedback.
4.3 Suction, Vacuum & Lubricant Retention
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R20: Because of its closed (non-air-release) design, it maintains vacuum better. During strokes, the “locking rings” help the lubricant stay, reducing dryness in longer sessions.
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Level 99: The vacuum effect is present but can fluctuate more in narrow constricted points, depending on how snug the shaft fits. In my test, sometimes slight micro-air leakage occurred in sharp transitions.
4.4 Insertion Feel, Resistance & Sensation Curve
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R20: Entry is smooth, then pressure gradually builds. The mid-region has noticeable texture but is not overwhelming, and the final stretch wards off dryness well.
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Level 99: Entry felt tighter, and the resistance built up faster. There are sharper spikes of sensation especially when entering or exiting constriction zones. For some users, that can be thrilling; for others, it might feel aggressive or even borderline stressful.
4.5 Noise, Leak Risk & Sealing
In my tests:
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R20 tended to maintain a stable seal at moderate speeds, with minimal audible hissing or leaks (unless extreme speed or angle).
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Level 99 occasionally showed micro-sound when transitioning through tight zones — the kind of “gasp” noise when moving quickly — but not overt leaks if lubrication is well maintained.
4.6 Cleaning & Maintenance
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R20: Because its internal channels are more “open” in transitional zones, rinse-through cleaning is easier. The protrusions are pronounced but accessible.
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Level 99: The narrower constricted zones require more attention — using soft brushes, flushing multiple times, and allowing extra drying time between uses.
Because Level 99 is more aggressive in its design, there’s a bit more care needed in maintenance to prevent buildup or lingering moisture.
5. Who Should Choose Which? (User Profiles & Recommendations)
| Preference / Situation | Recommended Series | Why |
|---|---|---|
| You’re still getting used to onaholes / want safer control | R20 | More forgiving, smoother ramp-up, easier maintenance |
| You prefer strong, sharp feedback and tightness | Level 99 | More intense constrictive zones and texture peaks |
| Concerned about vacuum retention over time | R20 | Better sealing and lubricant-locking mechanisms |
| Willing to invest effort in cleaning | Level 99 | Good for those who don’t mind extra maintenance for stronger effects |
| Want a balanced “all-purpose” model | R20 | Gives pleasurable sensations without being extreme |
If you are new to premium onaholes in North America, I’d suggest starting with an R20 (4th Gen) — it’s less punishing, easier to control, and gives a benchmark experience. Once accustomed, stepping up to Level 99 will feel like a pronounced bump in intensity.
6. Usage Tips & Maintenance Advice
Here are best practices to get the most from either series:
6.1 Lubricant Selection
Always use high-quality water-based lubricant. Avoid silicone-based lubes especially with multi-layer or soft TPE materials, as they may degrade surfaces over time.
6.2 Insertion & Speed Control
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Begin slowly, especially when using Level 99 — give the material a chance to adapt.
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Use stroke pauses in tight zones rather than forcing through too quickly.
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Keep strokes consistent rather than overly jerky to preserve vacuum and reduce friction hotspots.
6.3 Cleaning Routine
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Immediately rinse with lukewarm water after use.
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Use mild, unscented toy cleaner or diluted antibacterial soap.
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For tighter zones (especially in Level 99), use a soft brush or cleaning stick to flush out residues.
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Flip open or stretch gently (if material allows) to help internal drainage.
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Air-dry fully in a well-ventilated area before storage.
6.4 Storage & Care
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Store in a cool, dry place out of direct sunlight.
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Avoid contact with other toys (especially colored ones) to prevent pigment transfer.
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Optionally dust with renewal powder (cornstarch-based) for long-term dryness.
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Inspect periodically for discoloration, odor, or material fatigue.
7. Pros & Cons Summary
| Series | Strengths | Potential Drawbacks |
|---|---|---|
| R20 | Balanced sensation, strong vacuum, easier to clean, more forgiving | Might feel mild for “extreme stimulus” users |
| Level 99 | Sharper sensations, more constrictive zones, exciting feedback peaks | Harder to control, more demanding to clean, more risk of overstimulation |
8. Final Thoughts & Recommendations
Between the two, R20 is a great entry point or workhorse model — reliable, pleasurable, and manageable. Level 99 caters more to users who’ve gotten comfortable with stronger feedback and want sharper peaks of stimulation. Both have their place in a serious collector’s rotation.
If I were advising someone in the U.S. or Canada buying for the first time, I'd suggest starting with R20 4th Generation, getting familiar with texture, vacuum, and maintenance. Once you've dialed that in, a Level 99 model becomes a natural upgrade for a more aggressive experience.
If you like, I can also draft alternative titles, keyword suggestions, or a final formatted version you can plug directly into your Onahole Station blog. Do you want me to polish this up into a “ready to publish” layout?
