A dual motor sleeve that puts the power of a jack rabbit behind your every thrust! Vibrating pressure sensitive head with Mooncake Vibe. Dual vibrations. Super stretchy. Adds 1 inch in length. Removeable variable speed bullet vibrator. Waterproof vibrations. Materials Thermoplastic Rubber TPR Sleeve, ABS plastic Mooncake Vibe and Bullet. Sizes Sleeve 4.75 inches in length by 2.5 width by 1 inch in diameter. Bullet vibrator 2.25 inches in length by .625 inch in diamter. Mooncake Mini Vibe found in sleeve head 1.375 inches by .75 inch in diameter. Vibrator requires two different size batteries 3 AG13/LR44 and 3 LR1130 batteries included.