Designed for HARD FLOOR surfaces only. Transparent surface, anti-slide coating on the underside which is designed to keep them firmly in place while in use. Please put the smooth side facing down, the rough side is up Anti-Slip Design: The bottom of the mat is made with anti-slip rubber material, effectively preventing floor movement and sliding, providing a safer user experience No Phthalate, No Toxins, No Cadmium, No Tin and No Lead. keep a healthy indoor environment while give your floor and furniture the best protection Versatile Use: Ideal for protecting floors from furniture abrasion, reducing noise, and enhancing home comfort Easy to Clean and Maintain: The smooth surface is easy to clean, offering a long lifespan, making it an ideal floor protection accessory