Non-Slip Aluminum Handi-Treads - Permanent All Weather Solution for Slips and Falls. Reduce Slipping Hazards due to ice, water or sand. Ideal for porch steps, ramps, decks and walkways. Installs on concrete, wood or aluminum. Guaranteed to never rust or wear out. Color matching screws included. Llifetime residential warranty and a limited commercial warranty. Easily installed in any outdoor, residential, commercial or government location.