Remarkably lifelike CyberSkin(R) feels so real. Tight and textured inner sleeve Open-ended sleeve for easy cleaning. Removable and reusable sleeve. Water-proof hang cord for easy storage Vibrating bullet included - Uses 3 AG13 batteries (included) Item Dimensions: Item Width: 2.5 in. (6.35 cm) Item Height: 6.15 in. (15.621 cm) Item Depth: 2.5 in. (6.35 cm).