Image Item No. Description By  3437  Duplo, Brick 2 x 2 Catalog: Parts: DUPLO, Brick 40  31061  Duplo, Brick 2 x 2 x 2 with Indented Sides (Tree Trunk) Catalog: Parts: DUPLO, Brick 18  2302  Duplo, Brick 2 x 3 Slope Curved Catalog: Parts: DUPLO, Brick 2  3011  Duplo, Brick 2 x 4 Catalog: Parts: DUPLO, Brick 34  4199  Duplo, Brick 2 x 8 Catalog: Parts: DUPLO, Brick 17