This ch hanson chain clamp is built to last a lifetime it is made from high grade alloy steel for maximum toughness and durability it has a nickel plated finish which resists rust and corrosion the clamp features a traditional release lever which allows the clamp to be released even at a high pressure the traditional adjustment screw allows the clamp to fit to various sizes and pressures this locking chain clamp can hold and lock around any shape and has a chain span of 46cm 18 inches meets all