These rectangular, extra-plush carpets are made of thick, soil-resistant synthetic fiber that’s incredibly cozy—yet rugged enough to withstand the toughest classroom use! Plus, the carpets feature rich, inviting colors that resist fading year after year...with a sturdy, flexible backing that provides superior support—so carpets lie flat. Carpets meet a Class II rating of NFPA 253 and the fire-resistance standards of the Uniform Building Code.