SlipX Solutions Adhesive 7.5" Safety Treads Add Non-Slip Traction to Tubs, Showers, Pools, Boats, Stairs & More (White, 24 Count, Reliable Grip) Improve traction and safety on all kinds of slippery surfaces. Easy to install and simple to clean. Reliable grip, year after year. 24 safety treads per package. Individual tread size: 7.5" long x 3/4" wide. Designed for use on smooth surfaces. Some surface textures may affect adhesion. Not for use on refinished surfaces.