Flexco Stringers 600 in Gray Vinyl Stair Stringers Heavy Duty Storage Metal wear ring at the Metal wear ring at the end of the tube protects the pipe from damage AIRCAT also incorporates a patented ergonomically engineered handle design to relieve stress and fatigue on the operators hands and meets FloorScore and CHPS criteria Homogeneous color is inherent through the base and superior finish resists scuffing gouging and most chemicals Resist scratches crack or chip Stringers cover the side edge of the stairs to make a smooth transition between the tread and the wall Made in the United States and meets floor score and CHPS criteria Comes in a continuous roll for a seamless installation May contribute to LEED credits Intended for commercial and residential use For indoor use only