The “squeeze me” technology of the Vanity™ by Jopen® Vr1 means doing your Kegel exercises offers a stimulating reward! Two pleasure balls vibrate independently at varying speed when turned on or squeezed, enhancing passionate play and building pelvic floor strength with intense, hands-free internal simulation. 3 1/2" long. 1 1/4" dia. USB rechargeable. Recharges in four hours.