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Duplo, Train Base 4 x 8 with Light Bluish Gray Train Wheels and Moveable Hook
Bricklink ID:31300c03
Weight:58.000 g
31300c03

Sets with this part (from Bricklink)
  Part color Black
 


 Set nameRelease yearQuantity
1081010810 Push Train20162
1050710507 My First Train Set20131
1050810508 Deluxe Train Set20132

  Part color Dark Bluish Gray
 


 Set nameRelease yearQuantity
33543354 Gordon’s Express20071
55545554 Thomas Load and Carry Train Set20051