Loose Tube Internal/External Grade Fibre Multimode OM4. 50/125?m. LSOH (Low Smoke Zero Halogen). Flame retardant in accordance with EN 60332-3-24. Corrugated steel tape armour. CPR compliant to Eca. 6000/500MHz.km Bandwidth. Outer diameter approx.: 8.3 mm. Number of Cores: 4. Number of fibres per tube: 4 (colour coded). Blue. Sequentially metre marked. Price per meter.