Image Item No. Description By  3437  Duplo, Brick 2 x 2 Catalog: Parts: DUPLO, Brick 45  4419  Duplo, Brick 2 x 2 Slope Curved with Hole Connector Catalog: Parts: DUPLO, Brick 8  4419c02  Duplo, Brick 2 x 2 Slope Curved with Hole Connector with 3L Red Rope and Violet Stud Holder Catalog: Parts: DUPLO, Brick 8  87084  Duplo, Brick 2 x 3 Catalog: Parts: DUPLO, Brick 1  2302  Duplo, Brick 2 x 3 Slope Curved Catalog: Parts: DUPLO, Brick 7  2301  Duplo, Brick 2 x 3 x 2 Arch Inverted Catalog: Parts: DUPLO, Brick 1  3011  Duplo, Brick 2 x 4 Catalog: Parts: DUPLO, Brick 3  4198  Duplo, Brick 2 x 4 x 2 Rounded Ends Catalog: Parts: DUPLO, Brick 10  2291  Duplo, Brick 2 x 10 Catalog: Parts: DUPLO, Brick 1