3mm 10 Pack | 6mm 1/4th Inch Finished Premium Baltic Birch Plywood, 12" X 19", Glowforge Ready, Hand Selected | Boxes Of 10, 20, 50 And 100 | Laser Engraving, CNC, Scroll Saw, By Craft Closet Plywood Sheets We formed a team of like-minded people and together created Craft Closet, a place where the laser craft community can obtain high quality, laser safe materials. These materials have been safety tested and approved by Glowforge to ensure their compatibility with the laser cutting and engraving machine MDF is more dense and stronger than particle board, and a more even consistency compared to plywood Level up your laser projects with our cabinet-grade 1/4 Moisture Resistant MDF boards, purpose-built for clean cuts, smooth engraving, and reliable performance... As laser craft enthusiasts we saw a big need for laser safe, quality materials. 10 Pack | 6mm 1/4th inch Finished Premium Baltic Birch Plywood, 12 Shapes well with CNC or laser