E.S. Robbins 128383 Beveled Edge Chair Mat with Lip for Low to Medium Pile Carpet - 46 in. W x 60 in. L ES Robbins Beveled Edge Chair Mats protect carpeted floors against wear&#44; while providing smooth The beveled edge allows easy rolling onto and off of your chair mat. These durable floor mats feature plastic cleats that hold the carpet and keep them firmly in place. Beveled Edge Chair Mats are covered by a lifetime guarantee&#44; so they stand up to the daily wear and Lip extends underneath your desk for better floor coverage and protection.