Baltic Birch Plywood, 18mm - 3/4" x 24" x 30" BB/CP Single Piece - Walmart.com
Amazon.com: 3/4" x 12" x 12" Baltic Birch Plywood – B/BB Grade (Package of 3) Perfect for Arts and Crafts, School Projects and DIY Projects, Drawing, Painting, Wood Engraving, Wood Burning and