Brand: IIIPRO Model: E4 Color: black, red, silver, blue, green, purple Material: magnesium aluminum alloy Length: Front brake 800mm; Rear brake 1550mm Brake Pistons: 4 Pistons Brake Fluid Type: Mineral Brake Fluid Weight: about 230g for the front brake; about 245g for the rear brake; about 28g for the screw. Brake For: mountain bikes, DH，AM，folding bikes, electric bikes, etc. Control direction:The brake levers on one side are split, so you can freely remove both levers to your usual braking direction according to your usage habits. It can be used as left front and right rear as well as left rear and right front. 4 Piston brake: Smooth and even braking Cooling brake pads The multi-metal copper-based ceramic heat sink improves the heat dissipation performance by 25%. ①Cylinder block ②M6 oi.