<b>The suction cups compatible with Zenna Home, Simple Houseware, GeekDigg, Plumboss, Umbra, SplashHome, Selfix, Kenney, Home Zone, BBLHOME, DecoBros shower <b>caddy. </br> <b>Note: </br> <b>Please soak the suction cup in warm waterfor a few minutes, and then clean the suction cup for better results. </br> <b>You need to clean the surface with rubbingalchol before applying. </br> <b>Compatible with tiles, marble, glass, all smooth surfaced walls. </br> <b>What's in the box? </br> <b>Shower Caddy Suction Cup * 6</br> <b>Dimensions of suction cups: 0.43” x 1.69</br>