Steel brackets & chain; spring steel. Black finish. Designed to absorb shock, preventing wind damage to screen & storm doors & door closers. National Hardware Catalog Model No. N349-241.
Product Model # Black Finish Screen & Storm Door Stop Spring ChainDIB-203726 | N349241.
For California Residents:
WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov
WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood