1. LONGER LIFESPAN: hammerlock coupling link is made of heavy duty G80 alloy steel, it has better corrosion resistance and wear resistance, and the maximum loadbearing capacity up to 12000lbs, breaking capacity up to 47000lbs, suitable for any bad weather and any condition. 2. WITH RUBBER ISOLATOR: 2023 upgraded chain connector link, each connector is come with two rubber isolator(4 rubber isolator in total), which effectively reduces the wear of the tow chain connector and vehicles, it also greatly reduces the noise during work. 3. WIDE APPLICATION: 1/2' Hammerlock coupling link is suitable for all kinds of vehicles, you can use it for TRACTOR, FORKLIFT, RV, UTV, TRUCKS, TRAILERS and SUV, chain connector makes attaching tow chains easier. It can be also used as a 1/2' d ring shackle! 4. PACKAGE: The 2pack tow chains connector include everything you need, Connecting link x4; Connector x2; Drive pin x2; Detachable insolator x4. The exquisite packaging protects the product well.