Features: Necessary Accessories for Laser Cutting: With this accessory to cut wood, acrylic and other materials, the edges of the wood are neat and clean, not easy to be yellowed by smoke, and you can get a clean cutting work. 400x400mm working area is suitable for most popular laser engraving machines, maximize the cutting area. Observable Design: When the laser cuts through wood or acrylic, the metal plate at the bottom of the honeycomb will emit a bright light, which means that the cutting has penetrated. Easier to judge whether cutting through. You dont need to calculate the number of cuts, just keep repeating cutting until the bottom glows, which means the material has been cut through. Safe Metal Desktop Protection Board: All made of metal, processed by high-precision CNC, solid structure not easy to deform, and high flatness. And equipped with a metal desktop protection board, which can protect the table from laser damage. Square Measuring Ruler: X-axis and Y-axis contain precise scale lines to form a right-angle measuring ruler, which is convenient for you to measure the size of cutting objects quickly. Wide Compatibility: Compatible with various mature laser engraving machines, such as diode DIY laser engraving machine and CO2 laser engraving machine. Specification: Material: High-strength Steel Product Size: 400x400mm Product Thickness: 22mm Diameter of Honeycomb Mesh: 9mm Package Weight: 2.04kg/4.4lb Packing Size: 46x46x5.5cm/18.1x18.1x2.1in Packing List: 1 x SCULPFUN honeycomb panel 1 x 400x400mm metal desktop protection board