Cleartex Ultimat Chair Mat, made of polycarbonate, protects hard floors, including tiles, ceramic, wood, and laminate, from damage caused by castors and dirty shoes. Polycarbonate is extremely strong, durable, and transparent, and does not roll, slip or crack under normal use, making it one of the best materials for chair mats. It is also 100% recyclable and free of PVC and harmful chemicals. Move your ergonomic chair around freely without having to worry about ruining your floors or carpets, with this flat chair mat. Size: 120 cm W x 120 cm D