Durable Adapter: This fiber optic adapter is reusable, high-precision, and offers good compatibility. Low Loss: Features a Zirconium ceramic sleeve material design to reduce insertion loss and prevent ESD damage. Portable Size - This /LC fiber connector is mini-sized and lightweight. Wide Application: Used for telecommunication-CATV engineering and maintenance, optical network maintenance, optical measurement driven technology, cable systems, and other fiber optic projects, providing excellent performance and stability. Note: Due to different production batches, product color may vary, and the image may have chromatic aberration. Color: Blue + Silver Material: Metal + Plastic Size: Length approx. 4.5 cm Package Contents: 4 x Visual Fault Locator Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real one. The allowed measurement error is +/- 1-3 cm.