Made of 304 stainless steel with anti-rust properties, very strong and durable. Good workmanship, stable quality, can withstand tens of thousands of opening and closing Large tension, compact structure, shock resistant, comfortable use and good shock resistance, double spring design and excellent tension for a firm hold when locking. Can be firmly fixed under strong vibration and not easy to fall off Excellent workmanship, no burrs, no hurt hands, safe to use Very easy to install, only on the cupboard door or on fixed box with screws Perfect for cabinet, door, box, bag without lock or broken handle, ideal gadget for home, office, restaurant, factory, etc About the product: Made of high quality stainless steel for a long life Perfect as a box closure or zipper lever for lids, flaps and countless other uses. Widely used for welding, jigging, field repair. Quick releases are ergonomic for home, office, restaurant, store, factory, etc. Product features: Material: stainless steel. Release lever size: approx. 67.2 x 12.4 mm. Dimensions of the counter hook: approx. 26 x 16.2 mm. Mounting hole diameter: approx. 3.2 mm. Color: silver. Contents: 4 locks.