Staples Chair Mat for Hard Floors - 36"x 48" - ChestnutThe perfect addition to your workspace, this Staples Chair Mat for Hard Floors 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.