Product Specifications: Product Weight: 30g Material: Aluminum Size: As shown Color: Sliver Product Name: brake bleeder one way valve Humanized Accessory Set: Brake bleeder one way check valve comes with 2 spare bleed nozzle nuts, with thoughtful details; the whole set of tools is lightweight and portable. Although it is a basic design, it is a professional-grade brake maintenance tool, a must-have for auto repair shops and DIY car owners with a flexible hose design, it can be easily bent to adapt to different angles, easy to disassemble, and greatly improve the exhaust efficiency of the brake system One-way Valve Accurately Prevents Backflow: Brake bleeder one way valve built-in high-quality one-way check valve, strictly follow the arrow mark direction to install (away from the caliper), effectively block air backflow, ensure that the brake oil circuit is pure and bubble-free, and ensure the safety and reliability of the brake system Aluminum Shell Flexible Hose: Brake bleeder hose one way check valve shell is made of high-strength aluminum, which is resistant to brake oil corrosion and is lightweight ; Clip-on Quick Connection: One way brake bleeder valve innovative clip interface design, can be quickly connected to the brake/clutch bleeder without tools; it is recommended to use it with a hose clamp, double seal to prevent oil leakage, suitable for most models Four-step Efficient Exhaust Method: ① Loosen the bleeder → ② Connect the hose → ③ Slowly step on the brake to exhaust bubbles → ④ Refill oil in time. Simple operation, can completely remove the air in the oil circuit, ensure sensitive braking response, and novices can easily complete it Packing List: 1/2pcs * brake bleeder hose one way check valve