Features: 1.Quiet Work: Built in integrated silencer keeps brake fluid flowing quietly through the silicone tube, making messy work cleaner, faster, and quieter. 2.Principle Introduction: This brake bleeder bleeds and flushes hydraulic brakes and clutches with a vacuum, fully meet your usage needs. 3.High Efficiency: The kit contains a variable thumb throttle, which maintains average air flow rate 2 cfm and a desired brake fluid flow rate. 4.Easy Operation: The large capacity collection reservoir holds 2 liters of fluid, which makes changing brake fluid easy and simple for one person operation. 5.Stable Performance: The tube is specifically for bleeding the master cylinder, continuous, efficient performance brings you more reliable effect. Specification: Item Type: Air Brake Bleeder Kit Material: ABS, rubber, steel Intake Pressure: 2.75-11.6 bar (40-170psi) Air Flow Rate: 2cfm Hose Size: 40 inches x2 Application: Almost all types of vehicles