Feature: 1. Away From Electronic Products: This DIY toy can reduce the time that children play with electronic products and reduce the harm of electronic products to them. 2. Educational Toy: This STEM toy can exercise children concentration, develop their perseverance and spatial imagination. 3. Hand Brain Coordination Development: This education toy can exercise children hands on ability and develop hand brain coordination. 4. Learning While Playing: This DIY toy can stimulate kids research interest, let children understand circuit knowledge while playing. 5. Excellent Plastic Made: This DIY toy set are made of quality plastic material, which has good strength, sturdy and durable. Specification: Item Type: Scientific Experiment Circuit Toy Material: Plastic Suitable Age: More than 8 years old Battery: 2 x AA battery (delivered without battery). Package List: 5 x Blue Accessories2 x Foam Sticker1 x Battery Box1 x Motor 1 x Switch5 x Conductive Spring1 x Pen Clip Spring1 x Support Spring1 x Bag of Drawing Paper1 x Chinese English Manual1 x Base2 x Jigsaw Board1 x Iron Rod