1、190 Silver Polyester Taffeta: Round hot tub cover is made of 190 silver coated polyester taffeta,which is waterproof. It is wear proof, tear proof, breathable, and has long service life. 2、Weather Proof: Hot tub cover prevent snow and frost in winter, dust and sunscreen in summer, and leaves in autumn. It has multiple functions and is four seasons universal. 3、Compact and Foldable: Small and collapsible, the round hot tub cover is easy to install and remove and does not take up space for storage. 4、Keep Tub Cleaning: The hot tub cover prevents the outdoor hot tub from sun, rain, snow, and leaves, keeping it clean and tidy. It leaves you without having to clean your hot tub frequently. 5、Practical Home Tools: This protective cover works for outdoor tubs and hot springs. It is simple to use, beautiful and practical. It is a necessity of family life.