[No Drill on Your Bed Rail] Designed for Mounting truck caps with fiberglass or aluminum rails. Stay tight all the time..[What You Get] 4 Pack Newace NW-1 truck camper shell clamps. Available in Black and Silver..[Heavy Duty] Made of corrosion assistant aluminum alloy with oxidation treatment surface for long service life..[Fitment] Compatible with CHEVY: Silverado / Sierra 1500, 2500, 3500.Silverado / Sierra '07 with Cargo Rail--- DODGE: Dakota. Ram 1500, 2500, 3500--- F150 --- MITSUBISHI: Raider---Frontier '04-'05 without utility track, Titan without utility track. ---Tundra.[Award-winning Service] We always try to offer our customers with the best service. Please feel free to contact us if you have any question. We will offer free replacement and cover the postage fee for quality problem. Buy with confidence now!