[Flame-retardant and Provides excellent against vibration, impact, cable stretching, twisting, and is suitable for overhead, pipeline, direct burial, and branch connection. ^^ [Versatile and Suitable for various structured optical fibers, ensuring and connection in any environment. ^^ [ Material] The box body is made of reinforced plastic, ensuring excellent mechanical strength and longevity. ^^ [ and Connection] Made of reinforced plastic for high strength, resistance, and firm seal. Prevents material aging caused by heat, cold, light, oxygen, and ^^ [Large Capacity Fiber Storage] Can orderly store fiber connector and remaining fiber, with adjustable four-layer storage disc for different core connections.