American-Elm 6mm x (12 x 12 Inch) Premium Baltic Birch Plywood- Pack of 3 Flat Birch Ply Sheets for Arts and Crafts, School ProjectsPRODUCT DESCRIPTION American Elm Pack of 3, 6mm Thick Birch Ply sheet with 12 x 12 Inch Size. Appearance: Valued for its appealing light colour, Baltic birch plywood features a uniform grain, smooth texture and outstanding durability. Physical Properties: Baltic birch varies in thickness and contains an odd number of plies. The two outer plies, which comprise the front and back, show vertical wood grain that runs lengthwise throughout the sheets.