3M Safety-Walk Tapes and Treads are designed to provide traction on slippery surfaces where potential slips and falls can occur or where safety may be a concern. 3M Safety-Walk Indoor/Outdoor Tread can be used for steps, ladders, boats and workshops. Comfortable for bare-feet, 3M Safety-Walk Indoor/Outdoor Tread is a great choice in anti-slip protection. Color: Gray.