Ceramic ferule, with snap fastening and flange, light blue, duplex, * without screws *, PVC housing, ceramic sleeve, item information SC Duplex couplings in a colored plastic housing. Fastening options via clips, also using sheet metal or threaded screws, these are available as accessories. Connector type connection 1 SC-Duplex Connector type connection 2 SC-Duplex Design SC-Duplex Dust protection cap Yes Material of the housing Plastic Type of fastening Screw/snap Material of the sleeve Ceramic