Image Item No. Description  51708  Duplo Flagpole / Antenna 1 x 9 Catalog: Parts: DUPLO  2222  Duplo Hook Base 2 x 2 with Thin Bracing Holder Catalog: Parts: DUPLO  98458  Duplo Loading Pallet 4 x 4 Smooth Side Catalog: Parts: DUPLO  51706  Duplo Trap Door Grate 4 x 4 Catalog: Parts: DUPLO