... 2non-toxic,enviormental 3protect floor from wheel nick 4many thick&size 5use-in office home pp chair Mat floor protection mat,PP ... ,1.5mm,2.0mm,2.5mm,3.0mm...hard floor chair mat,non-toxic,enviormental, floor / carpet protecting,different thickness&sizes ... carpet, without studs for floor protecting plasic decorative round pink chair mat