Ages: 1½-5. Pieces: 65. The LEGO® DUPLO® All-In-One Box of Fun set has a whole load of DUPLO bricks for fun building and rebuilding for creative play. At its heart is a buildable wagon base with rounded edges and wheels that really turn. This comprehensive set also includes 2 opening window elements, a cute dog and numbered bricks with corresponding decorated bricks to help your child develop their counting skills. There are even extra classic DUPLO bricks for more creative fun. Includes a boy DUPLO figure.