1. FTTH project usable 2. Field installable 3. Insertion loss less than 0.3dB 4. V-shaped metal cavity works well in high and low temperatures 5. Installation in less than 1 minute. Reliable and superior optical performance Please note: The physical color difference or difference does not affect the use, please don't worry! Size: long about 52mm Material: plastic color: green Package Contents: 20 x Fiber Optic Connector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.