Description: 【Efficient Brake Bleeding】: This Brake Proportioning Valve Bleeder Tool is designed to lock the low pressure exhaust valve, allowing for quick and easy bleeding of the brake system on proportioning valves. It ensures a smooth and efficient process, saving time and effort 【Compatibility and Replacement】: Suitable for non adjustable combination valves, this Proportioning Valve Bleeder Tool can directly replace old or damaged, making it a versatile addition to your brake maintenance toolkit 【Prevents Valve Tripping】: Specifically crafted for proportioning valves, this tool helps prevent the combination valve from tripping during the bleeding process, ensuring a stable and reliable operation 【Easy Installation】: Simply remove the brake warning light on the valve and screw in the bleeder tool effortlessly. The straightforward installation requires no professional skills or special tools 【Material】: Made from sturdy metal material, this bleeder tool is built to last, its compact size of 3.97 cm x 1.24 cm / 1.56 inch x 0.49 inch makes it easy to handle while providing long term durability for repeated use Specification: Material: Metal Size Chart: 3.97cmx1.24cm/1.56inchx0.49inch Package Includes: 1 Brake Proportioning Valve Bleeder Tool Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.