About Size - 7/16-20 Thread Inlet; 3/8-24 Thread Outlet; 13" Handle Lever; fit for Master Cylinder 0.7 About Design - Simple light weight design and professional machined Handle, perfect for racing car About Material - Made of high quality CNC aluminum, anti-rust and not fade, feels great in hand About Features - Allows the rear tires to be fully locked, makes the vehicle parking. About Installation - Cut the original brake line with professional tools, Connect the oringal brake line with the inlet and outlet of the handbrake