Dual Kegel balls, with a rope that facilitates a safe extraction. Made of high quality silicone and ABS plastic. Rechargeable with USB, easily and comfortably. Waterproof and phthalate free. Recharge them in 45 minutes to enjoy up to 40 minutes of continued pleasure. Measurements: 9 x 3.25 cmDiscover California Exotics, at the forefront of sexuality!