Very stable and flat honeycomb panel. Compared to a different brand wins at every point. Flatness in average of 0,05 mm (so very good result), low weight, perfect quality. Even with really big blow from an air assist material did not move (3mm plywood), so couldn't buy better honeycomb for this price. Literally I am not able to recommend a better solution or purchase than Comgrow brand honeycomb.
I purchased this to replace the smaller 400x400 size bed that I originally ordered. The small one works, but the larger one is much nicer to work with. The aluminum tray underneath is great for protecting the bench top, and helps catch the tiny pieces that fall through the honeycomb when cutting out holes and tabs in small projects. I highly recommend getting the larger size. It's much easier to set the whole laser on top of the bed and not worry about needing to align the bed.
Great product and a very competitive price
Comgrow Magnetic Honeycomb Laser Panel with Aluminum Plate For Engraver Cutter Machine