JEGS Tite-Seal Pinch Clamps are unlike other pinch clamps, they have a unique tongue-and-groove design that creates a gap-free seal reducing possible leaks. A reinforcing dimple generates a spring-like action that allows the clamps to withstand vibration and temperature variations without loosening. Install by crimping the pinch point with pinch-clamp pincers. Clamps are for firm plastic & rubber hose and tubing. Manufactured from corrosion resistant 304 stainless steel. Available in three sizes and sold in pairs.