The Large Joint Closure is designed for the management of optical fibre cables with loose tube structures. The modular system, permits a quick and easy installation, either after the very first placement, to manage any eventual needs for reconfiguration or expansion of the network up to the reaching of its maximum capacity. The Splice Closure has IP 68-7 protection degree (no ingress of dust and protected against submersion up to 7 meters depth) and it can be installed inside concrete cavities (small chambers or manholes), inside control units and on poles, using the various fixing kits (to be ordered separately).