The vibrating plug "Mega" by Colt is made of silicone. The firm design features three stimulation-ripples, a safety ring and a ribbed handle. The name captures the spirit: The "Mega" packs a "Mega" punch with 10 functions of Intense Vibration and 4 Speed Settings. The easy touch controller is LED-illuminated. This vibrating plug is waterproof and can be used while taking a shower. The "Mega", the perfect toy for all who desire "Mega" quality and "Mega" durability. Requires 4 AAA batteries.