Image Item No. Description By  4195c02  Duplo, Train Base 2 x 4 with Blue Wheels Catalog: Parts: DUPLO, Train 47  4195c03  Duplo, Train Base 2 x 4 with Light Bluish Gray Wheels Catalog: Parts: DUPLO, Train 58  4195c04  Duplo, Train Base 2 x 4 with Pearl Light Gray Wheels Catalog: Parts: DUPLO, Train 9  22307c01  Duplo, Train Base 2 x 8 with 8 Blue Train Wheels and Movable Hook Catalog: Parts: DUPLO, Train 37  22307c02  Duplo, Train Base 2 x 8 with 8 Light Bluish Gray Train Wheels and Movable Hook Catalog: Parts: DUPLO, Train 36