Durable Strap: The shoulder strap is made of nylon material and stainless steel, which is durable. It will last long.Universal Strap: The universal strap is compatible with EGO power+ multi head system, leaf blower,string trimmers ST1500, ST1500-S, ST1500F, ST1500SF, ST1520S, ST1520 and ST1530.Adjustable Length: You can adjust the strap to a proper length to make you feel comfortable, so this shoulder strap is suitable for most people.Comfortable Strap: The strap makes shoulder share most weight of machine, relaxing your arms and hands. With a shoulder pad, you will feel extra comfortable to afford a machine.100% Satisfaction: If for any reason you are unhappy with our products, please do not hesitate to contact us. We will do our best to solve your problem quickly and efficiently