There are three sizes available. Suitable for most round hot tubs on the market. Please check the detailed dimensions in the product images. We recommend measuring your hot tub to select the correct size. This outdoor round hot tub cover is constructed from 210D Ox fabric with an inner silver coating. Durable, waterproof cover that protects against water, snow, dust, and is lightweight, helping keep your hot tub clean and dry. Features a drawstring design at the bottom with cord locks for added security, helping keep the cover in place on windy days. Designed to fully cover the entire tub, including the heating element or motor, reducing heat loss and helping maintain water temperature. Easy to clean—simply rinse with a hose and air dry. Includes a storage bag for convenient storage. Package includes: 1 x hot tub cover, 1 x storage bag. Hot tub and other accessories are not included.