This listing is per clamp. Breeze's Constant Torque Hose Clamps are a superior form of clamps designed to eliminate "cold flow" leaks with their belleville spring mechanism. This allows the clamp to automatically expand and contract as the engine temperature increases and decreases. They also feature an extended inner liner which protects softer hoses such as silicone from the worm gear serrations. Both the 5/8" band and the screw are made from stainless steel. Made to SAE specification J1508 Type SLHD.