The 288-SPLICES, 6-round input + 1-oval input FIST-type OPTICAL CLOSURE is a watertight, passive F.O. BOX, which guarantees a high degree of IP protection and therefore impermeability to external agents such as water, dust, humidity and extreme temperatures. It guarantees a resistance capacity range from -40° to 70°. Supplied with splice trays, heat-shrink kits for cable entry and pole or wal anchoring kit, it is mainly used in hostile environments, ensuring the management and operability of the fiber in safety.