Easy to install, no special tools required, the hoses attach to your existing valve stem (no need to remove valve core) allowing proper inflation and pressure checks in seconds. Each kit comes complete with everything you need for the specific wheel application. These heavy duty inflators are constructed of high quality two ply rubber tubing reinforced with a tough nylon braiding. For added protection a stainless braided hose wrap is available to withstand the elements and road hazards. Checking & inflating tires is as easy as 1, 2, 3!Determine your mounting systemAirless Stainless SteelDetermine how many hoses you need. Two hose kit (inner dual wheels only). Four hose kit (bothh inner & outer wheels) Wheel Cover Mount Determine which style fits your budget Rubber 2 ply Stainless Steel | Nice Dual Tire Inflators - Hub Mount Stainless Steel - 4 Hose Kit for 22" Aluminum Wheels