Feature: l Made of high quality aluminum alloy material, anti-rust, lightweight and durable l With M4*4 screws for easy installation, simple disassembly and assembly l Replacing the old and missed drive shafts or upgrading the plastic shafts l Nice accessories to modify your RC crawler car Specification: l Material: Aluminum Alloy l Color: Black, Red, Yellow, Green, Blue, Silver l Quantity: 1PCS l Length: 106-138mm l Installation Aperture: 5mm l Weight: About 24g Package: l 1x Middle Drive Shaft