”Swivel Racing” uses SUS304 stainless steel, which has better strength and corrosion resistance, for the fitting part. A high quality brake line that combines high reliability with aesthetic appeal. Of course, the performance aspect that conveys the pedal effort without waste and realizes a sharp response is also with origami. It is also recommended for users who place importance on high durability suitable for hard use on the brake line. The socket on the vehicle body is rotated by the swivel mechanism, which makes it easy to handle when installing. In addition, since the degree of freedom in handling is maintained, it is also a countermeasure against breakage of the brake line due to insufficient line length adjustment. A “sleeve” made of reinforced rubber is provided at the boundary between the socket and the line to prevent line breakage from the base of the socket, which is also a weak point of the brake line.