MCO 19221 -- Safety-Walk™ General-Purpose Tread Helps prevent slips and falls in heavy-traffic work areas, ramps, walkways, loading docks, machinery, vehicles and aircraft. Low-profile design reduces trip hazard. Mineral-coated, slip-resistant material is highly durable. Pressure sensitive adhesive covered by a removable protective liner. For use on smooth, flat surfaces. Black. Rolls, 2-inch x 60-ft, 2 Rolls Per Case. Sold by the Case.