Loose Tube Internal/External Grade Fibre Multimode OM2. 50/125?m. LSOH (Low Smoke Zero Halogen). Flame retardant in accordance with EN 60332-1-2. CPR compliant to Eca. Euroclass Cca-s1a-d0-a1. 500/500MHz.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.