The suction cup can be applied to smooth surfaces, like, glass, smooth wood, metal, flat marble, or other unpainted surfaces Super capacity bath shelves, wall mount not drilling wall bathroom organizers, bath organizers for shower make from safe and durables materials, shower home organization must haves The shower shelf is wide enough to hold bottles with pumps, shampoo, conditioner and shaver Multifunctional organizers and storage, bathtub storage basket organizers heavy duty.suction cup bath shower caddys widely use for kitchen, bedroom, laudry, bathroom organization and storage Practical bathroom accessories, leaking hole under bottom not drilling wall mount shelves, simple assemble & easy to keep the bath items clean