Single mode patchcord with 1.5 meter long, 3mm stainless steel jacketed, 3/125um pure silica core fiber for 400-450nm, terminated on both ends with 8° angle polished 1.8 mm OD ferrules. SP = Patchcord is only 3mm armor jacketed for 1 meter length, and includes a strain relief with a bulkhead panel adaptor. AR coated.