Keep playtime safe and comfortable with the BalanceFrom 9 Color Extra Thick Interlocking Puzzle Foam Exercise Play Mats. Covering up to 36 square feet, this set includes 36 interlocking 1-square-foot mats in nine vibrant colors to brighten any play area. The 0.4-inch-thick Eva foam provides a cushioned surface for crawling, playing, exercising, or other floor activities, while the textured, non-slip design helps keep the mats securely in place. Removable border edges create a clean, finished appearance, and the moisture-resistant surface wipes clean with ease after everyday use. Ideal for playrooms, daycares, classrooms, home gyms, and after-school programs, the versatile puzzle-piece design also allows kids to build tunnels, forts, and other imaginative structures.