My almost four year old grandson is just beginning to enjoy playing with and learning about dinosaurs. I looked for a set of plastic dinosaurs that he could have fun with and found this great set. Not only does it have 12 dinosaurs, it has a full-color paperback book and a nice cardboard carrying/storage box that holds the 12 easily.The book is a wonderful add-on in this set compared to others that I found. I have been rewarding him with two items from this set per week for the last 7 weeks. The first week, he got the book and a dinosaur, then two dinosaurs per week until the last week when he received one dinosaur and the carrying box.It gave us a lot of pleasure over the last two months and allowed us time to look at the book, absorb the information and discuss the “new” dinosaurs over the entire week. Now that he has the full set, he is over the moon about them and loves playing with them. For a fairly inexpensive gift, it was a real hit and one that he will continue to enjoy for a long time.The dinosaurs, which are approximately 7 inches tall/long, included in this kit are: Allosaurus, Ankylosaurus, Apotsaurus, Velociraptor, Parasaurolophus, Diplodocus, Monoclonius, Pachycephalosaurus, Spinosaurus, Stegosaurus, Triceratops, and Tryannosaurus (T-Rex). When I first opened the box, it was so packed that some of the dinosaurs standing on two feet could not quite stand on their own. I was able to tweak the legs back into position and now all stand well by themselves.