Enhance your hot tub experience with our MSpa 4 Bathers Round Bubble Mat – the key to heat preservation and energy savings! This bubble mat is designed for use with all Round 4 Bathers MSpa Hot Tubs and other hot tub models. It measures 175cm in diameter and 1cm in thickness, protecting the spa bottom and improving heat preservation. Crafted with anti-slip and waterproof properties for safety and durability, this mat keeps your spa warm and saves energy, allowing you to enjoy longer-lasting heat. It will also protect your hot tub from rough surfaces and ground debris, preventing the bottom of your spa from getting cold in winter.