Features: 1) Advanced internal structure design, fiber suffers no attenuation 2) The closure is spacious enough for winding and storing fibers 3) Fiber optic splice trays (FOST) are designed in SLIDE-IN-LOCK and its opening angle is above 90 degrees, the curved diameter meets with international standard 4) Easy and fast to increase and reduce FOST 5) Innovative elastic integrated seal fitting 6) Straight-through and reserved fibers with protective coat can be winded into fiber holding tray easily and neatly 7) The FOSC base is provided with an oval entry/exit tube, which can accommodate 2 pieces of fiber cable with max. diameter of 13mm simultaneously 8) While straight-through fiber cable is for branching application, fibers not cut off are for straight-through after being fixed and winded, fibers cut off are for branching after fusion splicing with fibers of other branching fiber cable. All of the above features make it more easy and convenient for installation, maintenance and reuse, therefore saving time 9) Vertical type 10) Hoop is used to fix and seal FOSC cover and base, and its installation is quite simple. GPJ is provided with 7 fiber cable entry / exit tubes