Kneeling/Sitting Creeper w/3" Casters & Chest Support, Black A Fully Adjustable Comfort Seat And Chest Support, Lightweight Strong Aluminum Frame, 3" Ball Bearing Polyurethane Casters, Tool Tray And Durable Waterproof Kneepads Are Some Of The Features That Make This Tool The Choice For Jobs That Require Working On Your Knees When Using Both Hands Limited one year warranty.