The Waterproof Power Stud Over and Under Dong from Cal Exotics combines traditional designs with a contemporary flair. Body safe, push-button 3-speed controller, and 100% waterproof. This soft and flexible vibrator offers 3 power packed speeds and push button control. Body safe PVC vibrator, ABS plastic, ABS plastic with polyurethane PU Cote cap, ABS plastic with Silver Plating decor. Vibrator requires 2 AA batteries, not included. 5.5 inches by 1.75 inches large shaft. 3.5 inches by 1 inch small shaft.