About This

• 【Features】- This is the most complete gear set, includes 69 kinds of gear parts. It can meet your DIY needs. Multi-uses, you can use it to fix the broken part,Great for diy science and small production, product design and mechanical model.
• 【Package Content】- This plastic gear kit include spindle, single/double crown gear, pulley, rack, bevel gear, copper gear, bushings, axles, tires, rubber bands and so on, more accessories that you need for diy robots/motors.
• 【Good Material】- This plastic gear kit made of high quality plastic, wearable and long service life.
• 【Dimension】- Most gear is 2mm aperture (tight or loose), in addition to two spindle hole are 2.3mm and 3.17mm.
• 【Wide Application】- The different kinds of parts and accessories in just one package, which makes it a perfect choice for laboratories, science education, DIY models, RC-airplane/helicopter repair, etc.