Compatible with WPL B-14 B-14K B-24 B-24K B-16 B-16K B-36 B-36K C-14 C-14K C-24 C-24K series MN90 MN90K MN91 MN91K RC model car. Made of high quality metal material,durable in use. Perfect replacement for old parts, improve the performance of the RC car. Item Name: Metal Gearbox /Transmission gear Material: Metal Motor Type: 370 Voltage: DC 12V Cable Connector:JST Female Plug Color: Silver;Blue. Weight: Approx. 170g Package includes: 1 x Metal Gearbox with heatsink Note: Light 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.