Features: Quickly locate and fix issue with this chip detectors. Ensure a smooth start for your vehicle. Suitable for various vehicle model, this signal detection system offer sensitivity for accurate result. A must for locksmiths and key programmers. Essential for detecting and repairing faulty circuit, this tester for auto repair technicians and maintenance personnel. Enhances your efficiency in maintenance. Easily identify and troubleshoot system problem with this user friendly tool. Perfect for professional mechanic and auto repair shop. Simplifying your repair process with this tool. Its color adds a touch of style to your tool. Do not let circuit issue slow you down get this tool today! Specifications: Material: Plastic Size: About. 6.8x6.8cm/2.68x2.68in Inner Diameter: About. 4.3cm/1.69in Package Includes: 1x Car Key Test Coil note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.