Ignite's Piston Plugs are ready to rev you up! This piston plug is made of 100% pure hypoallergenic silicone and can fill your tight cavity. Lube up the piston with your favorite water-based or silicone lubricant. Then, hop on the tip and the piston rings will seal your hole with pleasure. Keep sliding down.. and up... and down.. the super smooth shaft for the ride of your life! Use alone at your own speed or let a partner handle the throttle. Features & Benefits: Ribbed Shaft Curved, Easy-to-Grip Base 6 Inches Insertable Length (15.2 cm) 1.2 Inch Shaft Diameter (3 cm) Compatible with water or silicone based lubricants.