Protect your special rugs, carpet and flooring from damage caused by chair wheels. Ideal for plush, high-pile or heavily padded carpets over 3/4" thick. Blunt end studs won't pierce or damage your carpet backing. Beveled edge allows smooth on-and-off chair movement. Textured top surface is slip-resistant and scuff-resistant. Vinyl, classic mat is almost 1/3" thick to help prevent sinking and offers maximum transparency and durability. Free and Clear formula produces an exceptionally clear mat that is nonphthalate, noncadmium, BPA-free and lead-free.