Triple the number of pieces as in the original 3-in-1 set, so you can have all 3 models built at the same time! I believe this set is discontinued. In great used condition. The tractor model has 2 yellow 1x2 plates with vertical bar substituted with gray. Building instructions are available on Lego's website. Comes to you fully assembled and packaged with care, though some pieces may come apart during shipping.