The Storm Door Chain is a zipper that protects the swing door from wind damage. Size: The total length of the spring part is 63.5 millimeters/2.5 inches. Made of high-quality spring steel, with a surface treated with black zinc plating, it has strong load-bearing capacity, corrosion and rust resistance, is hard, and has a long service life. Suitable for various doors, adjustable for use. List content: 1 storm door chain. Product Name: Storm Gate Chain. Color: Black. Specification: The total length of the spring part is 63.5 millimeters/2.5 inches< br>< br>The storm door chain is made of hard spring steel and has been treated with black zinc plating on the surface. It has high corrosion resistance, is not easily deformed, and has strong load-bearing capacity, making it the best choice to protect the door swing< < br>< br>Package includes: 1 storm door chain.