Image Item No. Description  31110  Duplo, Brick 2 x 2 x 2 Catalog: Parts: DUPLO, Brick  4198  Duplo, Brick 2 x 4 x 2 Rounded Ends Catalog: Parts: DUPLO, Brick  4198  Duplo, Brick 2 x 4 x 2 Rounded Ends Catalog: Parts: DUPLO, Brick