Description: l Made of high quality aluminum 6061 T6 material, not easy to deform l Made by CNC machine with 3D streamline for a modern metallic appearance l Aluminum alloy material for better thermal conductivity, which has a certain heat dissipation effect and lets the gears to cool down faster l Precise bearing position minimizes the gap so the gears can rotate smoothly l Nice accessories to modify and upgrade the RC car performance Specification: l Material: Aluminum Alloy l Color: Blue, Black, Green, Red, Silver l Applicable Model: for LOSI 1/10 LASERNUT TENACITY ULTRA 4 ROCK TACER-LOS03028 Package: l 1x Middle Gearbox