The green side is a cutting mat, and the back is blue and serves as a clay board. The cutting mat side has a grid of 24cm x 30cm. I have used it several times at home. There are no major chips or damage to the main body, including the corners. There are no names written on it. As it has been used several times as a cutting mat, there are some scratches and stains, but there are no issues that would affect its use. I have included pictures of the noticeable areas in the last images, so please take a look. - Color: Green, Blue - Function: Cutting mat, Clay board Cutting mat, cutter board, elementary school student, elementary school, craft mat, Kobun Shoin, cutter, scissors Thank you for looking.