Game Zone Chair Mat, for Hard Floor/Medium Pile Carpet, 42 x 46, Black (121563) : Amazon.ca: Home
Office Chair Mat for Carpeted Floors with Lip, 48"X36" 2.0mm Thick, Transparent Desk Chair Mats with Studs for Low and Medium Pile Carpets, Easy Glide, Flat Without Curling : Amazon.ca: Home
Deflecto SuperMat Chair Mat, Medium Pile Carpet, No Lip, 45" x 53", Clear | Costco
Symple Stuff Leta Standard Lip Chair Mat with Straight Edge for Firm Surfaces & Reviews - Wayfair Canada