AUKUYEE Plastic Gear Set, 75Pcs Single Double Reduction Gear Worm Gear for DIY Car Robot QY12 sold2025 the handle has small ripples

the handle has small ripples to improve friction and grip

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Both headphone and microphone are TRRS 4 pole standard when for Microphone Function 2

AUKUYEE Plastic Gear Set, 75Pcs Single Double Reduction Gear Worm Gear for DIY Car Robot QY12 sold2025 the handle has small ripplesAUKUYEE Plastic Gear Set, 75Pcs Single Double Reduction Gear Worm Gear for DIY Car Robot QY12 Product Features 100% Brand new and high quality. Material: Plastic. Quantity: 75pcs 75 kinds of parts and accessories in just one package, which makes it a perfect choice for laboratories, science education, and DIY models. The plastic includes crown gear, single gear, double gear, worm gear, belts and other transmission parts. And all the display pictures