Bouncer- Take it and Shake it. Keep on rolling.Three weighted balls bounce inside the BOUNCER's shaft as you move it, for a feeling no other dildo offers.Butt safeGiving you a deeper and more organic sensation than vibration, this toy rumbles and knocks while you move it, so that slow and steady motion feels very different from hard and fast movement—and both are awesome. Use it on your own, hand it to your partner, or strap it on: its thin, broad shaft makes it ideal for harness play. Whether you find vibration to be a little overwhelming or you're a sex toy aficionado who's always searching for new sensations, pick up the BOUNCER and give it a shake.Low profile base. Harness compatible.Waterproof - submersible.All FUN FACTORY toys are invented, developed, designed AND produced in Bremen, Germany