Enjoy sucking on demand with this vibrating stroker that delivers immediate suction while you press - and quick release when you don't. A separate button offers an automatic suction option while the inner chamber buzzes with the strength of two vibrating bullets cushioned behind a deliciously textured channel.10 vibrating speeds & patterns5 sucking speeds & patternsManual on-demand suction2 vibrating bulletsIncludes free movie downloadStroker made from soft & stretchy TPEInsertable length 3.75", Insertable diameter 0.75" (Entry stretches for most)USB magnetic rechargeable, cable includedWaterproof