Slip-X Safety Treads. Reliable, Non-slip Protection for Bathtubs, Showers, Boats, Pools and More. 24 Treads Reliable, Non-slip Protection for Bathtubs, Showers, Boats, Pools and More Easy to apply, Easy to clean Improve traction and safety on a wide variety of non-textured surfaces. Reliable grip year after year Twenty Four 7 1/2" Treads For use on non-textured surfaces