Extend the life of your hard floors by protecting against chair caster wear and tear. The perfect addition to your workspace, this chair mat provides a smooth surface that enhances ergonomic comfort by allowing your rolling office chair to move easily. This chair mat is 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. | Staples | | Hard Floor Chair Mat with Lip, 36" x 48'' | Clear | Best Buy