SizeThere are 3 sizes f option.Fit f most Round Hot Tubs in the market. Please check the detailed dimensions in the Pictures andamp; Product Description. We recommend you measuring your Hot Tub to choose the proper size. MaterialOur outdo round hot tub cover is made of 210D oxfd with inner silver coating.Durable waterproof jacuzzi cover.Waterproof,snowproof,dustproof lightweight,keeps your outdo round hot tub dry clean. Windproof DesignThe Spa Cover with drawstrings design on the cover bottom to keep the cover secure on the windiest days, with cd locks f added security to make it won't blow away in the wind. Fully Cover Hot Tub DesignThe round hot tub cover goes completely over the whole tub also covers the heating element or mot prevents a lot of heat escapes around the mot.At the same time can play the role of protecting the water temperature. Easy to Cleanandamp;StageYou can hose it down with water let it dry in the sun. Comes with stage bag f easy stage.Package including 1 pcs HOT TUB COVER and 1 pcs Stage Bag.NOT including hot tub others.