JERK stroker JO toy rubs you just right...multi-ribbed inside to stroke as hard or soft as you like. For some seriously sloppy suction. We recommend burpin' out all the air by firmly squeezing out any excess air bubbles surrounding your cock. The Atomic Jock Jerk Jack-Off Toy is made of body-safe Flex TPR material is soft and flexible but rigid enough for intense sensations. Just add your favorite Water Based Lubricant and have a blast. It is not recommended to be used with silicone lubes. After use, carefully wash the toy with mild soap and water or try the Toy Cleaner for even quicker cleanup. Store this toy separately from other sex toys.