Brand new Product Features Hidden dreams…can you keep a secret? sexy, lacy, stretch-to-fit, comfortable panty designed with a hidden pocket for the powerful, quiet, waterproof micro-stimulator Batteries included (2 watch, 4 included) 90% nylon, 10% spandex (panty), abs (micro-stimulator) 1.5″x .5″/ 4 cm x 1 cm (stimulator)