Features: Premium Material: Made from eco-friendly PVC, this cushion is non-toxic, odorless, and designed for long-lasting use without deformation. Ergonomic Design: Conforms perfectly to the body's natural curves with a concave shape, providing comfortable support for extended sitting. Four-Season Universal: Can be filled with air or water, staying comfortable in both winter and summer. Suction Cup Design: Features suction cups on the bottom for added stability, preventing the cushion from slipping. Universal Fit: Suitable for all spas and hot tubs, providing comfort for both adults and children. Specification: Color: Blue Material: PVC Product Size: 47 * 37 * 15cm Package Size: 15 * 15 * 2cm Package Weight: 183g Note: The cushion is shipped deflated and requires inflation upon arrival. Inflation tools are not included. Packing List: 1 * Inflatable Cushion