Features 1、Chromium Molybdenum Alloy Steel: The gear is made of high accuracy chromium molybdenum alloy steel. The gear surface is heat treated, with strong wear resistance, corrosion resistance, good performance and long service life. 2、Working Stably: Our gears work stably. Compared with other pinions, the pinions have good processability, low roughness and noise, making them roll smoothly. 3、Easy to Install: Accurate processing, good processing makes the gear rolling smoothly. It has its own fixing screw hole, which is easy to install and operate. The package is equipped with organic rice screws. 4、26T 27T 28T: Three kinds of gears with different number of teeth give you more choices in transmission ratio and better performance of your remote control vehicle. 5、Rust Prevention: The surface is treated with rust prevention, which is an ideal substitute for old parts or damaged components. It is applicable to the 8mm shaft motor of 1/5 1/6 1/7 RC remote control model car motor. Item Type: RC Motor Gears Material: Chromium molybdenum alloy steel Gross Weight: 93g/3.3oz Color: Black Number of Teeth: 26T 27T 28T Gear Pitch: 25DP/1.0M Center Aperture: 8mm/0.31in 26T Size: 28x13.5mm/1.10x0.53in 27T Size: 29x13.5mm/1.14x0.53in 28T Size: 30x13.5mm/1.18x0.53in Applicable to: 1/5 1/6 1/7 RC remote control model car motor 8mm axis motor, such as for ARRMA, for Traxxas Package List 3 x Gear 3 x Machine Screw 1 x Wrench