Plastic MAXIMUM STORAGE: Flex Shower Organizer measures 16 ¼ by 24 by 4 inches and features two extra wide shelves that can hold up to four large shampoo bottles plus other shower essentials FUNCTIONAL MODERN DESIGN: Each rust-proof shower shelf features 2 large holes for securing bottles upside down, making it possible to dispense every drop of product INTEGRATED DRAINING SYSTEM: Flex Bathtub Caddy features an integrated drainage system EASY TO SET UP & MAINTAIN: The Flex shower basket system easily mounts over your shower head or shower curtain rod using two innovative mounting hooks (included) MODERN ORIGINAL DESIGN FOR EVERY HOME: From reimagining the functionality of home essentials to creating innovative new decor, Umbra products add personality to your home. Don’t settle for copy-cat products. Choose Umbra and get the original.