MATERIAL - 100% Premium non-toxic EVA Foam with printed wood design.nUSE - Water Resistant, Durable, Lightweight and Easy to Assemble. Soft underfoot, use for anti-fatigue and sound-dampening purposes.nSIZE - Each set consists of 9 square tiles and 12 border pieces.nCOMBINE SETS FOR LARGE SPACES - Each interlocking mat measures 18u0026#39;u0026#39; x 18u0026#39;u0026#39; x 0.4u0026#34;. When assembled, the set covers just over 21 square feet and measures 56u0026#34; x 56u0026#34;. You can combine multiple sets to cover any larger space.nCLEAN - Wipe using soft cloth with soap and water. DO NOT use any SOLVENT. Solvents and cleansers can damage the wood print design.n