Features: With 3 inflatable outer layers(128cm, 158cm, 180cm), which can fit all round inflatable hot tubs. You can choose to inflate to the size you want according to the actual situation. Our hot tub cover features double handle for easy handling, making it perfect for round hot tubs. Make of PVC materials, our hot tub cover offers excellent thermal insulation and strong sealing. The hot tub lid have antileak air hole for quick inflation and deflation, ensuring a strong seal with no air leakage. Prevent leaves and debris from entering your hot tub with our cover, reducing the need for frequent cleaning. It also help prevent condensation and freezing, extending the service life of your inflatable hot tub. Specifications: Materials: PVC Diameter: 128cm/50.39iinch, 158cm/62.2inch, 180cm/70.87inch (adjustable) Package Includes: 1pc Inflatable Hot Tub Cover note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.