The mat has a non base to ensure that the mat stays in place and does not slide around when cutting. It is large enough for most blocks and because it has little thickness to it, the edges do not become wobbly and unusable for cutting. Feature - Color: Mint green. - Material: PVC. - Size: About 8 x 0.5cm(LxWxH). - Made of , and strong self-recovery. - The green mat is reversible with grid markings on each side. - Cutting mats also have lines. - Protect your table from , writing instruments and other art and craft tools. - Self- finish reseals surface cuts, providing a continually smooth surface for all cutting projects. Warm tip: Dear buyer, due to lighting effect, monitor's brightness, manual measurement and etc., there could be some slight difference in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you! Package list: 3 x Cutting Mats