TYPE: 106pcs DIY Gear Accessories Set
MAIN FUNCTION: These products are for toys gear pulleys parts, suitable for all kinds of DIY RC cars, model making accessories.
meet you need: The gear set has varied the different sizes for your use, enough to meet you need.
QUALITY MATERIAL: This gear kit made of plastic, durable, strong and can be used long time.
PACKAGE INCLUDES: Main shaft gear, single/double gear, gear, pulley, rack, bevel gear, Gear, axle, rubber band, etc.
Material: Plastic
Inner Hole: 1.9mm, 2.05(2.0)mm, 2.4(2.55)mm, 2.9(3)mm