GREAT QUALITY: These hex screws are made of 304 stainless steel for rust protection, durability and long service life, with oxidation which has good resistance to extension and corrosion in many environments. SOFT: Surfaces are well polished and edges are also smooth, so they won't scratch or damage the hoses KNOW YOUR NEED: There are 8 kinds of hose clamps in different adjustable diameters you can choose. USE REQUIREMENT: Convenient to install or remove with a slot screwdriver or hex wrench SUITABLE FOR: Suitable for thin wall hose in small sizes such as air hose, water pipe, fuel hose, silicone hose etc., Manufacturer: Hilitand