• Chairmat is designed and properly weighted for firm, low-pile carpets • Sturdy material protects your carpet from wear and tear caused by chair casters • Easy-glide rolling surface provides effortless mobility • Lightly textured top surface is slip-resistant and scuff-resistant • Studded bottom delivers superior gripping power • Smooth finish edge offers ease in carpet-to-mat transition • BPA-free, noncadmium, nonphthalate chairmat is made of clear vinyl