Description Description: Material: Crafted from aluminum alloy material, these residual valves are designed to withstand the rigors of automotive use, ensuring long-last performance and reliability Product Size: With a size of 7.9cmx1.9cm and a lightweight design, these brake pressure check valves are easy to install without adding unnecessary weight to your brake system High Performance: The set includes both 2lb and 10lb residual valves, providing the necessary pressure retention to enhance braking efficiency and safe in your vehicle Compatibility: Suitable for both disc and drum brake systems, these valves come with 3/8-24inch fittings, making them a versatile choice for various vehicle models Package Includes: Each purchase includes two brake pressure check valves, ensuring you have everything needed for a complete installation or replacement in your braking system setup Specification: Material:Aluminum Alloy Size Chart: 7.9cmx1.9cm/3.11inchx0.75inch Package Includes: 2 PiecesBrake Pressure Check Valve Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.