OceanMat™ Chair Mat for Carpet 36"x48" Rectangular, OceanMat™ — a line of chair mats made from 100% ocean bound plastic waste, This lightweight chair mat functions best on low-pile and commercial carpets up to 1/4" thick, Its studded design grips carpet to keep the chair mat from moving while protecting carpet, Made from 100% ocean bound plastic, these recycled chair mats may have a slight tint