Description: Durability: This mountain bike brake hydraulic oil filling tool is made of lightweight aluminum alloy oil pot, which is processed by CNC molding, with higher strength and lighter weight.Ergonomic design: The hydraulic brake oil tool inject adopts 85mm handle design, providing ample grip and support to reduce operating fatigue.Oil change block: This lightweight block is made of transparent acrylic material and will not damage the caliper during use.Time saving: The bike brake caliper clamp contains many useful tools to make oil filling simple and save your time.Features: Bike oil filling tool before filling, you need to fill the inject and oil pipe with brake oil. Specification: Material: Aluminum Alloy Acrylic Size Chart: 19.5cmx9.6cmx6cm/7.68inchx3.78inchx2.36inch Package Includes: 1 Set Hydraulic Brake Oil Tool1 Special Oil Pot1 Blocking Oil Pot1 Hose1 Four Piston Stopper1 Double Piston Stopper1 Special Wrench for Draining Oil1 Set of Hexagonal Wrenches3 Wrenches