This mat has the appropriate hardness for use as an underlay when stamping, allowing for light-touch stamping. Large stamps such as square seals and chop seals can also be stamped beautifully to every corner. Made with a special rubber containing natural rubber, the mat's elasticity is minimally affected by temperature changes. Manufacturer: KOKUYO Dimensions: 100 x 210mm (approx. 3.9 x 8.3 inches) Color: Green It has been used, so there are scratches and stains, but there is no problem using it as a stamp mat. A ruler is shown in the photo, but it is a shooting prop and not included with the product. It will be placed in a plastic bag to prevent it from getting wet and shipped via Yu-Yu Mercari Mail's Yu-Packet Post Mini for anonymous delivery. If a Yu-Packet Post Mini envelope cannot be obtained, it will be shipped via Raku-Raku Mercari Mail's Nekopos for anonymous delivery.