Optical fiber butt precision is high, technical indicators are excellent. Core structure: designed for good sealing performance, minimizing fluid loss and offering strong weather resistance. Applicable optical cable: suitable for any combination of 0.25mm and 0.9mm optical fiber. Simple operation, fast construction speed, high installation success rate, and convenient maintenance. Application: ideal for FTTH engineering and optical cable repair. Product technical specifications: Fiber size: 0.25mm & 0.9mm Applicable model: Single mode & Multi-mode Operating time: about 10 seconds (excluding fiber processing) Insertion loss: ≤ 0.10dB Return loss: ≥ 40dB Fiber tightening force: > 5N Wrapping force: > 8N Working temperature: -40°C to +75°C Reusability (10 times): Insertion Loss ≤ 0.2dB, Return Loss ≥ 5dB Applicable optical cable: 0.25mm and 0.9mm optical fiber Color: black Material: plastic Size: approximately 45mm in length Package Contents: 10 x L925B Fiber Optic Quick Connector Note: Light and display differences may cause slight color variations between the image and actual item. Measurement allows an error of +/- 1-3cm.