1.good dependability 2.longer life 3.raw material from Taiwan 4.power by brake oil,also can by air-actuated SpecificationDBM oil hydraulic disc brake is mainly power by brakes oil,and can also power by air-actuated matched with hydraulic booster,and it have 2type ,right and left ,pls indicated right or left before give our order ,if you are going to use mineral oil,pls informed us in advance.