SC simplex plastic adapter with metal clip , slotted ceramic guide sleeve for single mode and multimode applications, with transparent dust protection caps for a better visibility during red light test , high material stability, surface quality and durability , durability min. 1000 mating cycles with a ceramic guide sleeve , screws and nuts included, variants: blue (SM), green (SM APC), violet (OM4), aqua (OM3), beige (OM2), each variant available in packing units of 1 piece or 50 pieces