The hose clamp is sturdy and rust resistant. thanks to 304 stainless steel material. The attached screw is also 304 stainless steel. It works outdoors and in wet environments.The hose clamp is suitable for flexible hoses with an outside diameter between 21 and 38 mm. The width of the clip is 12mm. One pack includes 5 pieces.The hose clamp is carefully polished to keep its edges and smooth. without scratches in contact with fingers and pipes. Within the working range. the hose clamp has good elasticity and fixes the pipes firmly.There are other sizes of hose clamps available in our store. We offer a wide range of clamp specification options. which cover all frequently used hoses. from 6 mm to 57 mm.The clamp can be used on the garden hose. the pool hose. the gas pipe. etc.