PROTECT CARPET: The office chair mat for carpet, protecting the carpet from wear and tear, and the grainy design on the top reduces leg fatigue when moving chairs, while not leaving any marks on the low pile carpet. SAFE, ODORLESS: The desk floor mat for carpet is BPA and Phthalates Free, making it the great choice for those with children or pets at home. Rounded corners and smooth edges provide safety protection. UPGRADED MATERIAL: The clear office chair mat for carpet is made of upgraded material with a special grain on the front, that makes the chairs move more smoothly, The large nail on the back has a scientific structural design and density distribution, making the carpet chair mats more firmly fixed to the carpet. DURABLE & EASY TO CLEAN: The office mats for rolling chairs have a special treatment surface, that can better show the beauty of furniture, easy to clean, just wipe it gently with a cloth to clean it as new. No cracks, no bends, no scratches, long-lasting