This pack include set of 3pcs Plastic Spur Gear Outer Diameter: 39mm No. of teeth: 25 Inner Diameter for Shaft: 6.1mm Compatible shaft size: 6mm Total Thickness: 27.58mm Thickness (Teeth Portion): 12.13mm Hub extension diameter: 14mm Thickness of hub extension: 7.7mm Material: Plastic ABS Color: Yellow Package Includes: 3 x Plastic Spur Gear

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