The Tenga Flip Hole White is definitely my favourite sleeve, because it takes care of the various areas of my cock (head, meatus, frenulum, coronal ridge, shaft) delightfully well, both as I slide in and as I pull out, providing a multifaceted and encompassing caress that causes me to become fully focused on my erection. It's a fantastic way to masturbate. In my opinion, no other toy provides such a perfect balance of textures (without being overwhelming so that I can go slowly and stay on the edge if I want to). Everything feels wow, from the entrance to the opposite end and back. The toy makes me feel wonderful and happy. It makes me moan and squirm. It truly gives me satisfying, ball-draining orgasms. (This is my second one: I wore my other one out.)