Description:What it can offer you is corrosion-resistant gears because of its rust-resistant treatment; and it can be tightly connected because of its gear groove design.With high quality material, this gear makes it hard and not easy to break; and it is non-slip and sturdy, so it can be used for a long time.Constructed of metal material, it is durable to use.This gear set includes 5 pieces in total.It is suitable for 1/8 RC model car.Item Name: Motor GearMaterial: MetalFeatures: Replacement Parts, Anti-deformed, Rust-proofSize Details:Height: 1.3cm/0.51" (Approx.)13T: 1.5cm/0.59" (Approx.)14T: 1.6cm/0.63" (Approx.)15T: 1.7cm/0.67" (Approx.)16T: 1.8cm/0.71" (Approx.)17T:: 1.9cm/0.75" (Approx.)Shaft Diameter: 0.05cm/0.02" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 Set of Motor Gear