Metal Differential Gear Front Wave Box RC Car Upgrade Part for WLtoys 12428 12423 12429 Features: l100% brand new and premium quality lEasy to install and use lDurable, it can make you to control your car better lThe upgraded product will bring you a better user experience Specification: lApplicable models: for Hao Jun 8830 JJRC Q46, for WLtoys 12428 12429 12423 Package Content: l1 x Front Wave Box Note: lLight shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.