Amazon.com : ECOSO Office Chair Mat for Hardwood/ Tile Floor, with Lip, 36"x 48",0.16" Thick, Hard Floor Protector, Anti Slip, Self Adhesive and ECO Friendly, Floor Mat for Office/Home. (Brown) : Office
The Most Environmentally Friendly Office Chairs (Reduce your Carbon Footprint) - Ergonomic Trends
Amazon.com : Chair Mat for Hard Floors Abstract Desk Chair Mat with Multi-Purpose Green Black White Multi-Purpose Carpet Low-Pile Desk mat for Office Home : Office Products