National Hardware Screen & Storm Door Stop Spring Chain is crafted with durable steel brackets and a spring steel chain, all finished with a zinc-plated coating to resist corrosion. This product is specifically designed to absorb shock, effectively preventing wind damage to your screen and storm doors as well as door closers. It provides reliable protection and helps extend the life of your doors by minimizing wear caused by strong winds. I for use with both screen and storm doors, this spring chain a practical solution to maintain door stability and functionality. Model Number: N162-024