2x small silicone caps 1x large silicone cap Universal fit for water pipes, steamrollers and most glass tubes Creates airtight seal that stops odor and helps cleaning Resolution Caps allow you to universally stretch and seal for an airtight fit over glass water pipes, steamrollers and other glass accessories.This helps for an excessively fast cleaning process. Res Caps are also Ideal for traveling and scent stopping for the clean lifestyle smoker.