Actual Size: Outer dimensions 500x500x12mm (19.68x19.68x0.47 inch). Usable honeycomb size 475x475mm (18.7 x 18.7 inch).
Compatibility: This honeycomb size is compatible with D1, D1 Pro, Falcon, Falcon 2, Master 3, P20 V35 Plus, S6, S9 and Most Laser Engraver.
Steel Honeycomb Grid : The honeycomb grid uses steel instead of aluminum, this unit gives you the option to hold your materials down with strong magnets to ensure that they do not move during cutting or engraving.
Comes with Aluminum Sheet: The included aluminum sheet that you can put under the honeycomb bed, it does an excellent job of protecting a tabletop and also to collect all the debris from cutting.