Mix or Match Dinosaurs is a product for creative development. Each set comes with a Triceratops, T-rex, Parasaurolophus, and Stegosaurus that can be mixed and matched into many different combinations that a child can imagine. Just put them together and take apart again and again! Our hidden magnetic locking system makes assembly a snap! Details:Assorted colorsDesigned to allow for various configurationsSimple construction using magnetic piecesRecommended for ages 3 and up