RYANSTAR Hydraulic Handbrake Master Cylinder 3/4, E-brake Racing Parking Emergency Brake Lever Handle Red About Size - M10 X 1.25 Thread Inlet; 3/8-24 Thread Outlet; 12.4" Handle Lever; fit for Master Cylinder 3/4 About Design - Simple light weight design and Sponge Handle, durable also not easy to slip, 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