Mammoth Office Products Anti-Static Plastic Chair Mat for Standard Pile (3/8-Inch or Less) Carpeting, 36 x 48 Inches Rectangular with Lip for Under-Desk (V3648LAS) Anti-Static substrate naturally dissipates charge to protect electronics Unique Phthalate Free PVC plastic provides superior transparency Guaranteed not to crack, chip, break or shatter under normal use and correct applications Smooth back prevents floor damage Safer low odor formulation Lightly textured top surface for better traction Eco-Friendly: 100% recyclable; made from up to 25% recycled materials using 30% renewable energy Designed for standard pile carpeting (3/8" thick or less)