LifeSafe Products Neotac Traction Tread Strip, 6in x 21in. Hard wide-ribbed texture Neotac Traction Tread Strips may help reduce the risk of slips, trips and falls. For safer footing everywhere: steps, ladders, ramps, basement stairs, boats, trucks, trailers, farm equipment, decks, skateboards, pools, docks, diving boards and campers. Application: remove backing paper and position on surface. Surface must be clean, smooth, dry and above 50 degrees F or 10 degrees C. Press safety strip firmly to ensure solid contact with surface. Do not apply over uneven surfaces; bridging gaps not recommended. For safest footing, space safety strips one to three inches apart. 6 x 21 inch size sold Each.