Polyester Blend Made from 50% recycled eco-friendly enhanced polymer for long-life durability and high impact strength. Provides a perfectly flat and rigid ergonomic easy glide roll surface. Dramatically outperforms and outlasts carpet gripper eco alternative manufactured RPET, or PETG plastic Protects your carpeted floors from general wear, spills, scuffs and damage caused by casters on rolling chairs. Ideal for use under chairs at your computer desk / workstation at home or in the office Our enhanced polymer floor protectors will not crack, sink, curl, cup, discolor or smell under normal use and correct application. The high clarity allows flooring to show through for an attractive and highly effective addition to your office or home environment. Compatible with under floor heating systems Lies instantly flat from delivery for immediate and effective use. No need to wait for the chairmat to flatten Eco-friendly manufacturing with 50% of our manufacturing site’s energy coming from on-site and external renewable sources. 100% recyclable. Free from Phthalates, tin, lead and cadmium. Child and pet safe. GreenGuard Gold certified Please note, due to the manufacturing process this product has a +/- 5% size tolerance. All measurements are rounded to the nearest inch Gripper back for use on standard pile carpets (up to 3/8"). Not suitable for hardwood or other hard floor applications. Product Size - Rectangular 48” x 79" 1 Year Limited