20Pcs Plastic Worm Gear 34Teeth 342A Model Reduction White Gear, 0.71’x0.08′(ODxID) Plastic Worm Crown Gears for Pulley Belt Shaft RC Car Robot DIY Mechanical Parts Kit

About This Product :

• Modle: Plastic Gears ; Number of teeth:34 ; Modulus: 0.5 Modulus.
• Outer diameter18mm; Hole diameter: 2mm.
• 100% Brand new and high quality. Good accessories for Vehicle or remote control, Provides a convenient choice for your DIY project.
• Plastic Gears suit for a science DIY project such as rc model car, model electric robot and displaying how gear ratios work, and any other family small motor DIY project.
• This is the most complete gear set. It can meet your DIY needs.