20Pcs Plastic Gear Number of Teeth52(Outer Diameter 27mm/1.05′ Hole diameter2mm/0.08′ Thickness4.6mm/0.18′ ) Modulus Pulley Belt Shaft Robot RC Motor Hand DIY Mechanical Parts Kit White

About This Product :

• Modle: Plastic Gears ; Number of teeth:52 ; Modulus: 0.5 Modulus.
• Outer diameter:27mm; 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.