This desk mat is made from pure polyethylene and Eva materials. It stands up to daily use without cracking, bending, breaking, scratching, discoloring. Its unique surface texture lets office chair casters glide smoothly during daily tasks without leaving marks on the mat, helps reduce leg fatigue over time. The grid-style non-slip backing keeps the mat firmly in place during use, protecting your floors, furniture, preventing slips or falls. This versatile mat works well under office chairs, computer desks, plants, decorative items, craft stations, dog crates, can also be placed on top of tables or desks. It is designed exclusively for hard floor surfaces including hardwood, tile, linoleum, vinyl, provides sturdy support for heavy equipment. Do not use this mat on pile carpets or rugs.