Proprietary ""Clip-On"" chassis for attachment to most major brands of electronic leak detectors, video borescopes and extension type devices that measure ¼"" to 3/8"" in diameter, Powerful true UV emitting LED technology is compatible will all common UV leak detection dyes, Proprietary ""Clip-On"" chassis for attachment to most major brands of electronic leak detectors, video borescopes and extension type devices that measure ¼"" to 3/8"" in diameter, Fits shafts measuring ¼"" to 3/8"" in diameter such as a Inspection Mirror, Leak Detector or Video Boroscopes, Visually confirm leak sources, SKU: EGLE12363