T-Rex is an ever popular set in the Dinosaur World collection with the showcase T-Rex model. This set includes 300 pieces, as well as 4 special Hamacron parts. The special Hamacron parts (large wheels + shafts, mini wheel + shafts) enable a wider variety of movement and building techniques. This set includes an instruction guide to make 4 amazing models including T-Rex, Deinonychus, Ankylosaurus and Pteranodon models.