Build a combine with this 3D puzzle containing 154 pieces from Ugears Whether you are a collector or just want to decorate your home, this highly detailed model is perfect. Ugears designs and manufactures unique self-assembly mechanical models without glue and made entirely of high quality wood. This is an original gift for any occasion When you move the model, all the elements are in motion, just like in reality. You can recharge the rubber band engine of the combine by rolling it backwards. The model contains a secret compartment that opens with a lever on the left side of the driver's cab. On the other side you will find a 'handbrake' lever that blocks the engine at the stop. Dimensions: 27x16x13 cm. From 14 years old. Assembly: 5h to 8h. Instruction booklet included.