About This

• EDUCATIONAL STEM TOY：Build 5 transformable models (Chainsaw Robot/Space Chainsaw Robot/Space Vehicle) to learn mechanical engineering principles & logical thinking through hands-on assembly
• AGE-APPROPRIATE CHALLENGE：419-piece set with progressive difficulty—ideal for ages 6-14. Collaborative play for beginners, solo missions for advanced builders
• CERTIFIED CHILD SAFETY：ASTM/CPSIA-certified ABS plastic + soft rubber chainsaw blades. Overheat protection & short-circuit prevention for worry-free play
• DURABLE & EASY ASSEMBLY：Wear-resistant joints withstand repeated rebuilding. Color-coded instructions guarantee frustration-free building
• DYNAMIC LIGHTS & LONG BATTERY：Motorized RGB light effects enhance role-play. 40 mins continuous play per USB charge—50% faster charging than competitors