Screw

Imagine that your ass is that plastic shit in which they stick the screw in. You know how it goes – you drill the wall, then you insert some plastic shit into that hole you drilled, then you install the screw.

So, for this one to go in flawlessly, apply some lubricant, stick it in, spin it and it’ll find ts way. You just stick it in as much as you like.

Made out of glass, strong material. It’s some transparent-blue color. Quite effective visual, even useful as a decoration if you’re making a BDSM room for example.