For use in a variety of applications; appliances, automotive, marine, toys, tools, mechanical devices, contraptions and more These extension springs are designed with single loop open ends for easy and reliable fastening to fixed and moving parts Spring dimensions: 1-1/16 inch outside diameter, 5-1/2 inch length, 0.12 inch wire diameter, 48.2 lbs. maximum safe load, 3.62 inch maximum deflection All springs come in a beautiful, corrosion resistant, nickel plated finish allowing them to be used both indoors and out Constructed of durable spring steel (tempered steel wire) to provide optimum retraction when stretched