Image Item No. Description By  4066  Duplo, Brick 1 x 2 x 2 Catalog: Parts: DUPLO, Brick 1  3437  Duplo, Brick 2 x 2 Catalog: Parts: DUPLO, Brick 6  31110  Duplo, Brick 2 x 2 x 2 Catalog: Parts: DUPLO, Brick 23  3011  Duplo, Brick 2 x 4 Catalog: Parts: DUPLO, Brick 39  2300  Duplo, Brick 2 x 6 Catalog: Parts: DUPLO, Brick 1  4199  Duplo, Brick 2 x 8 Catalog: Parts: DUPLO, Brick 1