This is a 3 mm thick unfinished Baltic Birch whole-piece face veneer plywood. The front side is B grade light and even in color there maybe some pin knots and brown streaks. The back side is BB grade light and even in color there maybe some pin knots, mineral streaking/ discoloration and tight knots permitted. Multi-ply ALL BIRCH solid inner plies. Constructed with Type 2 Hot Press Urea Resin Glue. Our plywoods are sold in larger sheets at the lumber yard and cut down to smaller sizes in our woodshop. Please allow 1/8"+/- variance in size to allow for saw blade cutting. Sample of plywood is available, please call and inquire.