Eco-friendly chairmat with a lip is better for the environment and better for you. PVC-free, BPA-free chairmat is odorless and completely free of any toxic chemicals so it does not induce or irritate allergies. 100 percent recyclable mat is made from a high percentage of post-consumer recycled PET plastic, including water bottles, soda bottles and packaging. Durable, polyethylene construction won't curl, crack, or discolor. Studded back grips carpets up to 1/4" thick. The clear, rectangular design offers a slight tint. The lip size is 20" x 12".