27 Tooth 29 Tooth Reduction Gear Pinion Set for Wltoys 284131 RC Car Features: l Easy and convenient to install and remove l Nice spare parts to upgrade your RC car, effectively improve the performance of your car l Made of high quality material, durable and wear-resistant l Light weight, will not increase the extra load of the RC car Specification: l Applicable Model: for Wltoys 969/K979/K989/K999/P929/P939/284131 RC Car l Weight of Single Set: About 6.4G l Material: Plastic Package Includes: l 1 x 27 Tooth Reduction Gear l 1 x 29 Tooth Reduction Gear Note: l The color of the product often changes due to the problem of raw materials, sometimes it may be beige, sometimes it is black, sometimes it is mixed color