PP Chair Mat with studs,non-toxic,enviormental,for carpet protecting,different thickness&sizes,widely used in office,home PP Chair Mat with studscarpet protection mat,for carpet protectingSize:900x1200mm,914x1219mm,1000x1300mm,1000x1200mm...Thickness:1.0mm,1.5mm,2.0mm,2.5mm,3.0mm...Backside with studs or without studsWidely used in office,home... PP chair mat with studs