The Waterproof Power Stud Over & 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. Phthalate-Free PVC (vibrator) ABS/ABS with PU Cote (cap) ABS with Silver Plating (decor). Requires 2 AA batteries. 5.5 x 1.75/ 14 cm x 4.5 cm (large shaft). 3.5 x 1/ 9 cm x 2.5 cm (small shaft).