Recycled chairmat with lip features gripper cleats and is designed for carpets up to 1/4" thick. Eco-friendly mat is made with a high percentage of post-consumer recycled PET material, mainly from used water bottles, for a harder rolling surface than PVC-based mats to allow easier movement. Sturdy construction is free of PVC, phthalates, BPA and other toxic chemicals. Gripper cleats firmly grasp your carpet so the mat will not move. Smooth edge allows easy chair movement on and off the mat.