Craft Cutting Mats Self Healing  
Double Sided 5 Layers -
Great for Quilting, Sewing, Scrapbooking, Fabric & Papercraft -
Mat sizes A1 = 36" x 24" - 914mm x 609mm
Mat sizes A2 = 24" x 18" - 609mm x 457mm
Mat sizes A23= 17" x 11" - 420mm x 270mm
Imperial grids and metric grids on opposite sides.