ES Robbins' Beveled Edge Chair Mats protect carpeted floors against wear, while providing smooth chair movement around your workstations. 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, so they stand up to the daily wear and tear of any office environment. Lip extends underneath your desk for better floor coverage and protection.