1、Olive Connection Insert Kit: High purity copper olive head and oil needle have ultra high weather resistance after pressing and deformation. Wider adaptation to various brake fluids. 2、Leakage Free: There is no need to worry about aging and oil leakage of this bike brake hose, even if it is immersed in brake fluid or exposed for a long time. 3、Applicable Model: This brake hose is suitable for FORMULA C1 mountain bike disc brake, please confirm the model of the bike oil disc before use. 4、High Blasting Coefficient: The blasting coefficient of this brake hose is more than 10000PSI, which is sturdy and wear resistant, and can be used with confidence. 5、Precise Manufacturing: The oil tube is made of special oil pipe for disc brakes, which is produced with inner lining pipe, knitted yarn and nylon outer coating.