Vibrator with flattened end. One button solution: Press down on -on/off, this increases the vibrations, but pressed again decreases the vibrations. Quality tested (Tüv) very good skin compatibility, dermatologically and clinically tested, hypoallergenic and odourless. Approx. 12 cm long, Ø 3.1 cm. Material: silicone, phthalate-free according to EU Regulation REACH. When using with lubricant please use a water based one. Please order batteries separately: 2 x Micro (AAA).