From Hooman

I have several variants of silicone sounds and started off with those however having now tried these I have to say these are hands down the only way to start. Not only are these so silly smooth, they just feel great both to hold and to use. I cannot complain about anything here. If there was anything I'd change it would be to have an 8mm included since the next more advanced set jumps straight to 9mm from 7mm. But apart from that. This product absolutely delivers.