ecraft replacement cutting mats are made of PVC which is durable and environmental-friendly. made of durable non-toxic materials, these mats are durable enough which not easy to break off. These cutting mat square gridded area size: 12x12 Inch(305X305mm),the entire cutting mat size: 13x14Inch(330X356mm)(L*W).StrongGrip cutting mats offer a Strong adhesive surface, perfect for Cardstock, Printable Iron-on,Glitter Cardstock,Pearl Paper,Vellum,Printer Paper,Vinyl,Handmade papers,Washi Sheets,Craft paper,Thin fabrics,Embossed Cardstock,Construction Paper,Window Cling,Printable Fabric etc. StandardGrip perfect for securing heavyweight materials,such as thick cardstock, craft foam, cardstock, ,fabric with stiffener, magnet sheets,chipboard,poster board etc. LightGrip can be used for Cardstock,Light Cardstock,Printer Paper,Printable Fabric,Craft Paper,Pearl Paper,Vellum,Vinyl,etc.