This is a folding cutting mat. It folds from A3 size to A4 size. Nakabayashi Cutting Mat Folding Cutting Mat A3 CTMO-A3 Color: Dark Blue_Size: Length 31.7 x Width 23.8 cm Open size/A3, folded size/A4 Weight: 250g Color: Dark Blue Packaging size: 31.5 x 23.5 x 4.0 cm Easy to carry! Folds in half! Folding cutting mat ● Creases are less noticeable. You don't have to worry about creases! ● Carry it in your bag! ● Made of environmentally friendly recycled olefin resin. ● 5mm grid lines. [Features] Uses environmentally friendly "recycled olefin resin". Convenient 5mm grid lines. The material is designed to prevent ink from transferring from copy printing. Ideal for inkjet printing processing such as paper crafts. Thank you very much for checking to the end. We hope you will purchase it after confirming the above.