Premium Material: The blue pool cup holders are made of strong plastic, sturdy and durable, they can withstand accidental bumps with floating objects. Correct size: 7x9x14cm. It fits most pools with round tops of 5cm or less, perfect for backyard pools, framed pools and enjoy summer fun Pool Cup HolderCompared With the floating cup holder, this beer rack is more stable and does not flip over, which prevents drinks and beer from entering your pool. Easy to use: you will receive 2 cup holders poolside; cup holders and handles can be stored separately, hang it on the outdoor pool railing to complete the installation. Versatile use: suitable for above ground pools, bathtubs, etc. You can place beer, drinks, toys, sunglasses, cups, sunscreen and more. You don't need to leave the pool to drink something while swimming. Features: Can be hung on the pool railing. This above ground pool cup holder attaches very securely to your pool pole, so you don't have to worry about spilling your drink. Features: Material: plastic. Product dimensions: 14 x 9 x 7 cm. Installation method: hook type. Applicable tube thickness: 5 cm in diameter. Contents: 2 pool cup holders.