For use in a variety of applications; appliances, automotive, marine, toys, tools, mechanical devices, contraptions and more Spring dimensions: 1 inch outside diameter, 3/4 inch inside diameter, 3.1/2 inch length, 0.12 inch wire diameter, 66.6 pounds max safe load, 1.717 inch solid height and come in a beautiful, corrosion resistant, nickel plated finish Constructed of durable spring steel (tempered steel wire) with an inside diamter of 0.76 inch to provide optimum retraction when stretched and designed for use with a variety of household and professional applications Things to take note of this item: the shape of each end of the spring, how far will it stretch (deflection), length of the spring measured from the ends of the hooks and how much weight can it support Please refer to the line art drawing for dimensions and compare with your needs before purchasing (Not Universal)