Perfect Fit: Designed for all 4-person square hot tubs up to 118cm, this 110x110cm spa cover ensures a snug and secure fit. Energy Saving: Innovative heat insulator technology helps save energy by retaining heat, reducing your spa's running costs. Weather Protection: This inflatable lid offers excellent protection against rain, preventing overflow and keeping your spa clean. Heat Insulator: Keep your spa water warm and inviting with our efficient heat insulation, ideal for year-round use. Durable & Reliable: Made with high-quality materials for durability, this protective cover is designed to last, offering you peace of mind and extended spa enjoyment. Shatchi Inflatable Square Bladder Fits All 4 Person Square Hot Tubs Up to 118cm in Light Grey