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: Loosen the bleeder Connect the hose Slowly step on the brake to exhaust bubbles 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