<ul><li>It's the 2 Speed transmission case with a dig unit.</li><li>Material: aluminum alloy. The build quality of this is just first classis both inside and out.</li><li>Upgrade your RC car, and help to improve its performance.</li><li>Easy and convenient to install and remove, preferred by Knowledgable Model Hobbists & R/C Enthusiasts.</li><li>Compatible with 1/10 Axial SCX10 RC Crawler Car.</li></ul> It's the 2 Speed transmission case with a dig unit. Material: aluminum alloy. The build quality of this is just first classis both inside and out. Upgrade your RC car, and help to improve its performance. Easy and convenient to install and remove, preferred by Knowledgable Model Hobbists & R/C Enthusiasts. Compatible with 1/10 Axial SCX10 RC Crawler Car. Package : 1 x Gearbox

2-Speed Aluminum Transmission Case Gearbox with Dig Unit for Axial SCX10 1/10 RC Crawler Car