Item Type: RC Gear Box Housing Material: Aluminium Alloy Application: Designed for Traxxas 1/18 TRX4M RC Crawler Product Size: Approx. 34 x 33 x 22mm / 1.33 x 1.30 x 0.87in ( Manual Measurement, Slight Error May Exist ) Package List 1 x Set of RC Gear Box Housing(2 Accessories) 8 x Screw 1. Please Allow 1 to 3mm Error Due to Manual Measurement. Thanks for Your Understanding.2. Monitors Are Not Calibrated Same, Item Color Displayed in Photos May Be Showing Slightly Different from the Real Object. Please Take the Real One As Standard. 1Aluminium Alloy: This RC gear box housing is made of premium aluminum alloy material, sturdy and durable, stable and reliable. 2Gear Protection: This RC crawler gear box shell can directly replace original parts, protecting internal gears of gear box from rock damage. 3Designed for Traxxas: This gear box housing is specially designed for Traxxas 1/18 TRX4M RC crawler, proper design, easy to install and disassemble. 4Balanced Control: This RC crawler gear box housing comes with fixing screws to provide balanced control, improve the RC car's simulation. 5Shock Resistance: This gear box case for 1/18 TRX4M improves simulation effect, and the shock resistance and high compression resistance are increased. Note: 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.