Certified by the National Floor Safety Institute (NFSI) as providing "high-traction." Use in heavy-traffic work areas, ramps, walkways, loading docks, machinery, vehicles and aircraft. The rolls have a low-profile design and their mineral-coated, slip-resistant material is highly durable. The rolls have pressure-sensitive adhesive, covered by a removable protective liner. Safety Tapes Type: Antislip Tread Rolls; Width: 4"; Length: 60 ft; Color(s): Black.