The drawstring design keeps the pool cover from ripping or blowing around. Sturdy enough to last a whole season. Makes our lives so much easier. It is UV-resistant, waterproof, dustproof and heat resistant, using this cover can keep rain, hail, snow, dust, leaves and bird drops away. Constructed of oxford fabric material, the tub cover is water-resistant and durable. There are three different sizes for you to choose: S(4ft), M(6ft), L(8ft). Keeps oval stock-tank pool free of leaves and dust all winter/summer. It's keeping all the debris out of stock-tank, which will save cleaning. Perfect for your oval stock-tank pool, outdoor swimming pool, hot tub and so on. Item Name: Hot Tub Cover Material: Oxford Fabric Features: UV Proof, Reusable, Waterproof, Dust-Proof Size Details: S (4ft), L: 121cm/47.64", W: 60cm/23.62", H: 30cm/11.81" (Approx.) M (6ft), L: 182cm/71.65", W: 60cm/23.62", H: 30cm/11.81" (Approx.) L (8ft), L: 243cm/95.67", W: 60cm/23.62", H: 30cm/11.81" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Hot Tub Cover