TENGA Flex Masturbation Sleeve by Tenga

Twist it, grip it, or just let it spin: the TENGA FLEX turns a stroke into something with actual movement behind it. This masturbation sleeve is built to react to your hand, not just sit there and take it.

The outer case is spiral-ribbed, so once you cover the air hole at the top after insertion, the whole sleeve winds and unwinds as you stroke, adding a spiraling motion on top of whatever rhythm you set. The casing itself is malleable, which means squeezing, twisting or gripping it changes the pressure and sensation in real time, so you are shaping the feel as you go rather than settling for one fixed sensation. Inside, the chambers shift in character from one end to the other: small pointed nubs give way to spiraling micro ribs, then larger crater-like texture, before finishing in a zig-zag chamber with a stimulation point right at the tip for a strong finish.

Tenga made this stroker from elastomer and polypropylene, so it is waterproof and cleans up easily with warm soapy water or a toy cleaner. Keep it nearby for whenever you want a sleeve that moves with you instead of against you.