A St Optical Fiber Cable Connector Made Of Metal By Uxcell Is An Sm/Mm Bare Descriptions:1. Bare Fiber Adapter is an auxiliary tool for professional fiber optic test market, it is highly suitable for emergency repairs and temporary splice fiber. 2. Length 40mm, diameter 13mm, repeatability: ??. 2dB, times of reusing: ??000 times3. Easy and intuitive operation, by visual observation, Reusable, single/multi-mode fiber can be used. Usage:1. Stripped fiber coating (15-20mm) and cleaned with alcohol. 2. Press fiber adapter switch, then push fiber into hole slowly until the ceramic core(5-6mm)out, relax switch. 3. Use ruby cutting tool to cut the fiber from bottom. Product Features Net Weight: 11g; Package Content: 1 x ST Optical Fiber Adapter Main Color: Silver Tone, Black; Type: ST Insert Core Diameter: 125-127um; Insertion Loss: let 0. 2dB Working Temperature: -40C - 80C; Ferrule Hole Diameter: 7mm(0. 28") Country of Manufacture: CHINA; Material: Metal, Plastic Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!