Two in one: With this cute trolley young adventurers are always well-supported. It helps them learn to walk and at the same time it can be used to transport the 32 coloured bricks. 33 parts. This stable walker is made of solid timber and plywood! The polished and variously shaped bricks (5 cm to 10 cm) made of beechwood nurture the motor skills and also the recognition of colours and shapes.