Features: Metal V-groove structure, the precision of optical fiber is high, technical indicators are excellent. Core structure: box structure design, good sealing performance, matching fluid is not easy to lose, weather resistance is strong. Suitable optical cable: suitable for any combination of 0.25mm fiber and 0.9mm fiber. Simple operation, fast construction speed, high installation success rate, long life cycle, simple and convenient maintenance afterwards. FTTH engineering repair application and optical cable. Fiber optic fast connector only, other accessories demo in the picture are not included! Specification: Fiber diameter: 125mu; m (657A and 657B)Tight lining diameter: 250mu; m and 900mu; mSuitable mode: single-mode; Multi-mode Bare Fiber Tightening Force: gt; 5NSight Tight Package Mounting Number: gt; 8NTought Temperature: -40 - 75°C Multi-Usage: ILle; 0.2 db RLle; 5dBMaterial: PlasticLength: app.4.5cm /1.77inColor: As shown in the pictureQuantity: 1 set (includes two boxes)Note: Please allow 0-1cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Included:10pcs x Fiber Optic Fast Connector