Extend the life of your hard floors by protecting against chair caster wear and tear. The perfect addition to your workspace, EverLife chair mats provide a smooth surface that enhances ergonomic comfort by allowing your rolling office chair to move easily. EverLife chair mats are made with durable vinyl that is GREENGUARD Gold Certified for low chemical emissions to promote a healthier workspace. Designed for use on hard floor surfaces only, do not use on carpet. With Lip—Ideal for extended under desk coverage and narrow workstation openings. Mat Type: Chair Mat; Application: Hard Floors (Heavy Use); Width: 36"; Length: 48".