It's a strapless strap-on designed to give skin-on-skin contact without breaking the continuity of action to adjust straps and buckles. It works! A person uses their internal muscles to hold it in place with the bulb as the shaft protrudes at a natural angle. The Tantus Strapless™ Slim is easier to hold and control than the original; the Slim is 10% lighter than the original model, making it lighter for the driver. 
 
Vibrator: Single Speed Removable Waterproof Bullet Vibe, Uses 3 x LR44 Type Batteries 
Safe For Your Body: Made from 100% Ultra-Premium Silicone 
Easy To Clean: Eco-Friendly, Hypoallergenic, Hygienic, Boilable, Bleachable and Dishwasher Safe.