I bought this set for my daughter to use as a fun STEM activity to go along with a unit study on dinosaurs. She really enjoys it. Each dinosaur comes in a color coordinated large plastic egg with the pieces in a sealed plastic bag. Every dinosaur has its own manual plastic screwdriver to use for assembling the dinosaur. The pieces can be stored in the egg or the assemble dinosaur can be displayed on the bottom half of the egg. Flip the egg shell over and place the dinosaur's feet into the cut outs. This would be fun for a play group activity and then each child can take home their own dinosaur and egg.