Black lace thong with removable vibrating bullet with 10 different functions. Waterproof. It works with 2 AA batteries, not included. Bullet measurements: 7 x 3.25 cm Panties material: 85% Polyamide, 15% Spandex (panty) 75% Nylon, 25% Lycra® (elastic) Polyester (ribbon) Bullet Material: ABS PlasticDiscover California Exotics, at the forefront of sexuality!