Chair mat provides protection to floors from damage and costly repair/replacement as well as an easy rolling surface at any desk or workstation. Anchorbar chair mat cleat system uses a series of staggered perpendicular bars that make handling easier than traditional cleats and these anchors hold the chair mat securely in place without damage to carpet.For use on carpet up to 1/4 thick including padding. GreenGuard Gold Certification for low chemical emissions. Made in USA.