Features High-Accuracy Measurement Tool: This VU meter header delivers precise readings, ensuring optimal performance for your audio equipment and enhancing sound quality User-Friendly Pointer Dial: The intuitive design allows for easy interpretation of measurements, making it an essential tool for both beginners and professionals Durable Construction: Made from high-quality, wear-resistant materials, this DB amplifier header is built to withstand regular use, ensuring longevity and reliability Nighttime Visibility: Featuring a bright orange 12V 55mA bulb, this device provides clear visibility in low-light conditions, enabling accurate monitoring at any time Versatile Application: Ideal for DIY projects, recording studios, and car audio transformations, this testing tool adapts to various setups, making it a must-have for audio enthusiasts Features: 1、Exquisite and smooth appearance, its appearance is beautiful and textured, allowing you to enjoy the visual enjoyment during use. 2、Long service life, is anti and proof, and does not fade, has a high practicality, and can safely let you use it for a long time. 3、Simple to use, it is more convenient to disassemble and install, you can easily use it in combination with other optical instruments. 4、Independent research and development technology, it has high accuracy, good performance, and can be more widely used in the optical field. 5、Made of aluminum alloy material, it has no burrs and prure points, is not easy to deform, and has strong flexibility and stability. Specification: Item Type: Diaphragm Model: SK44 Material: Aluminum Alloy Uses: Accories for Lasers, Cameras and Optical Platforms Inner Hole Size: Approx. 2mm / 0.1in-44mm / 1.7in Outer Circle Size: Approx. 60mm / 2.4in Thickn: Approx. 6mm / 0.2in Number of Blades: 16 Package List: 1 x Diaphragm Package List 1 x Diaphragm