Laguna Stainless Steel Hose Clamps are specifically designed for non-kink hosing to provide maximum torque and sealing efficiency for tight and secure connections to pond equipment. The clamps have a smooth inner surface that will not damage the hosing. Designed to withstand the elements, the stainless steel clamps will not rust. They can be loosened or tightened easily using a screwdriver. Size: 13 mm - 19 mm (1/2" - ¾"). 2 Hose Clamps per pack.