Express Wheel 32-Piece Barn Carrying Case Introducing the Express Wheel 32-Piece Barn Carrying Case. This all-in-one farm set will keep kids happy for hours and teach them about agriculture and life on a farm. This 32 piece play set has everything you will need for you own farm. The Express Wheels 32 Piece Barn Carrying Case includes 2 die cast farm tractor, 2 die cast trailer, one large plastic barn and related fun accessories. Suitable for young children aged three years and over.