Loose Tube Internal/External Grade Fibre Multimode OM1. 62.5/125?m. LSOH (Low Smoke Zero Halogen). Flame retardant in accordance with EN 60332-1-2. Euroclass Dca-s2-d0-a1. 200/600MHz.km Bandwidth. Outer diameter approx.: 6.5 mm. Number of Cores: 24. Number of fibres per tube: 24 (colour coded). Black. Sequentially metre marked. Price per meter.