Glowforge Proofgrade Basswood Plywoods light surface makes it a popular choice for engraving projects. Its the perfect choice for high-contrast designs, and for use as inlays with darker woods like walnut. With distinctive patterns and grains, this Proofgrade Plywood is custom fabricated with a hardwood core. Each core is surrounded by a layer of natural hardwood and finished with a furniture-grade semi-gloss finish. Proofgrade Light Plywood takes your projects from start to finish quickly, cutting twice as fast as medium plywood. The Proofgrade collection is specially designed and safety tested for laser cutting and engraving. Proofgrade materials are formulated for use with the Glowforge 3D laser printers and are outstanding for any CO2 laser cutter or laser engraver.Size: 31 x 31cm (12 x 12 inches) 3mm thicknessEngineered wood core surrounded by micro-thin natural hardwoodLight surface, ideal for engraving Designed for use with the Glowforge machinesSafety tested for laser cutting