It's important to create a safe, non-slip environment in the shower and bathtub and these appliques do it in a fun and colorful way. To use, simply make sure the tub or shower is dry, arrange appliques where you want them and then remove the backing and press firmly. Allow to set for 8 hours. For use on non-textured surfaces only. Each package includes 8 3 1/2" x 3 1/2" appliques.