KYO Crystal Mouth

2 Review(s)

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Customer Reviews

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  1. Intense and varied sensations, but slight durability issues. Review by Anon

    This hole has an interesting series of structures. The teeth lightly and pleasurably scrape along your shaft as you use the mouth side. Doesn’t scrape any skin off, and I’m usually very sensitive to that. Oral penetration is quite intense as the toy squeezes you strongly without forcing you out, with most structures pleasurably oriented against your thrust direction. Penetrating from the vaginal side is much smoother, less intense, but also with strong pressure. Since the structures now face the other way, it really keeps you in.

    The pressure comes down to rings and the material itself, which is on the firm side, very dense and springy, with a smooth/slick surface once lubed. Surprisingly non-sticky while dry. When lubed, the material doesn’t cling at all, but keeps its shape well and thus wraps itself snugly around your shaft. It’s firm, even very firm in places, but not rough. The rings don’t stretch much at all, but are really well-placed – at the throat and at an angle further in.

    Transparency is very limited unless you oil up the toy and wash away all the powder. Kind of like alabaster or frosted glass. You can roughly see where the structures are and how deep you are.

    Positions and Use:

    At around a pound, this toy is easily used with one hand. Though the hole is listed as 17 cm long, it is slightly compressible, so if you’re on the larger side and go all the way your head can quite easily poke out one end. The toy is firm enough that there is suction in the mouth if you plug the other end with a finger.

    The second, slanted ring pushes some gill-like folds against you as you push through into the final third ofthe toy, making for a very intense zone right before the gentle end chamber. This chamber, located near the small vaginal opening, is excellent for edging. This combination makes for fun and varied thrusting.

    I tried the ona with Onatsuyu and Moisty+ lube. For me, the material really shone with Onatsuyu. While Moisty is usually nice for blowjob onas as it is a bit more watery, this toy’s textures are very intense, so a slightly thicker lube was more pleasurable.


    Comes in a nice, sturdy cardboard tube. Suitable for long-term storage, but I’d recommend a toy bag instead for better drying/breathing. No lewd illustrations, just some (explicit) box text. The toy was initially wrapped in a protective cover that smelled strongly of desiccants. High-quality presentation overall.
    No lube included!


    The firm material itself has excellent durability, but I’m afraid I can’t say the same for the resistance rings on the inside. My (above-average) girth managed to burst the constricting rings during my third go with the toy, reducing the toy’s immense pressure but adding additional stimulating elements to its inside. Still feels great, and the usual weakpoint of the corners of the mouth shows no signs of tearing any time soon.

    Cleaning is very easy as with most through holes. The hole obviously can’t be turned inside out at all and I wouldn’t even consider trying – you’ll rip out the teeth and destroy the rings – but you can reach all the way in with your fingers.

    I’ve used the toy about a dozen times in three days now. I usually prefer softer toys, but the intensity of this one is quite compelling. Despite my very sensitive skin, neither the teeth nor the firm textures have left a lasting mark on me, which I attribute to the very smooth material.

    My toy also has some small bubbles of air inside of the cast area, close to the right cheek of the mouth. They are in a non-critical location, but I felt I should mention this. A possible (dis-)advantage of the translucent material – stuff like torn rings and air bubbles become immediately apparent.


    As far as sensations are concerned, this hole punches a good bit above its weight (or price). Despite the durability issues (which do not affect the performance of the toy forme), I’d recommend it overall, particularly if you are of average or smaller size. Excellent as an introduction to oral toys due to varied textures which lend themselves to some experimentation, and very good price-performance ratio. (Posted on 1/20/2020)
  2. good one Review by crystaljoe
    great onahole, both sides feel great can really feel the cock rings inside and the design makes cleaning easy :) (Posted on 12/30/2019)

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