NST-20 2" x 20 Yards Non Skid Black and Yellow Safety Stripe Tape 6 Roll/Case "Sure-Step" non-skid safety tapes provide a high traction, anti-slip, waterproof surface to help prevent slips and falls. Aggressive acrylic adhesive bonds to a variety of materials and conforms to irregular surfaces. For use indoors & outdoors; on walkways, ramps, stairways; in machine shops & work areas, etc.; to comply with OSHA 1910.263 (3). White liner. 3" neutral core.