This construction kit includes 230 pieces to build 12 different robots. The kit is a great introduction to solar power and hydraulics. There are 12 different robots to build, including a Monkey, Master and dog, dinosaurs including Pterosaurs and T-Rex, Elephant, Crocodile, Ostrich, Scorpion, Forklift, Obstacle avoiding rover, Excavator and Buggy. All robots can articulate and move providing hours of fun construction and play.