HOPBLOCK Motor Kit, Mini Inline Four Cylinder Metal Car Engine Kit for Adults & Teenagers, DIY Experiment Learning Toy

Material and workmanship of the product: the product uses metal material, CNC technology precision casting, aluminum alloy oxidation dyeing, collection of craftsmanship exquisite workmanship, 325 parts are all polished by professional abrasives, perfect interpretation of human wisdom in the era of great industry creation and longing Scalability Each product has its own independent function and structure, and the product can be upgraded, combined and converted into an energy system by a certain set or DIY modification. Fun to assemble: the original product requires the user to assemble the parts and components. The whole process is very similar to the professional assembly line process. After assembly, it takes more than 3 hours and the difficulty level is 4.5 stars. It is interesting and full of experience Perfect gift: surprise your tech enthusiastic friends and family members on Christmas, Halloween, birthdays and other occasions! Our mini motor kit is a unique, exquisite gift with high quality and excellent workmanship. Perfect as a sophisticated home decor or unique office desktop collection ornament Warm tips: suitable for adults and teenagers who are over 16 years old. Please use the machine according to the instructions to avoid damage to the machine due to incorrect operation, Manufacturer: HOPBLOCK