About this item 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 eco alternative manufactured RPET or PETG plastic. Anti-slip base for added stability. Ideal for polished, varnished, and lacquered flooring. Protects from general wear, scuffs, spills, and damage caused by casters on rolling chairs. Ideal for use under chairs at your computer desk/workstation in the office or at home. 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 underfloor heating systems. Lies instantly flat from delivery for effective and immediate use. No need to wait for the chair mat to flatten. Unlike vinyl