ColorStar® mats feature the latest innovation in dying technology and PET, a type of polyester yarn that features 100% recycled content reclaimed from plastic, making them exceptionally color-fast (fade resistant) and eco-friendly. ColorStar mats are certified high-traction by the National Floor Safety Institute (NFSI) and are made in the USA. ECO-FRIENDLY | ColorStar mats are made with PET, a type of polyester yarn that features 100% recycled content reclaimed from plastic FADE-RESISTANT | PET yarn has excellent color-fastness and is resistant to fading from repeated washing or cleaning. STAIN-RESISTANT | PET yarn is naturally stain resistant, making it easy to remove stains from the mat SAFE | Certified high-traction by the National Floor Safety Institute (NFSI) MADE IN THE USA | Please note, mat size is approximate as rubber shrinks and expands in conjunction with temperature and time. Tolerable manufacturing size variance is 3-5%.