Durable polycarbonate chair mat is designed for use on all types of hard floors. The extra-large size makes it ideal for a variety of work space setups while providing reliable floor protection. Made from clear, resilient polycarbonate with double the impact strength of PVC, it resists cracking, curling, discoloration and odors and is 100-percent recyclable.Durable polycarbonate chair mat is designed for use on all types of hard floors. The extra-large size makes it ideal for a variety of work space setups while providing reliable floor protection. Made from clear, resilient polycarbonate with double the impact strength of PVC, it resists cracking, curling, discoloration and odors and is 100-percent recyclable.