Large-capacity Basket keeps multiple bottles close at hand Secures to walls using sturdy, phthalate-free StrongHold suction cups Features holes for storing shampoo, conditioner and liquid soap bottles upside down Lever-activated StrongHold suction cups make for simple, tool-free installation Suction cups slide to avoid grout lines For best results, use on smooth glazed surfaces, mirrors or glass. Not recommended for use with textured or porous surfaces including some stone, acrylic or metal. The OXO Better Guarantee: If you experience an issue with your OXO product, get in touch with us for a repair or replacement. We're grateful for the opportunity to learn from your experience, and we'll make it better.