Bestpriceam New 4*6mm Oxygen Soft Pump Hose Air Bubble Stone Aquarium Fish Tank Pond Pump 1M, 3M, 5M, 10M (10M) Material: Soft silicone, brand new and high quality Dimension: 4*6mm (Inner diameter*Out diameter) We have 1m, 3m, 5m, 10m air pump tube Very light and soft, Professional oxygen pump hose for fish tank New 4*6mm Oxygen Pump Hose for Air Bubble Stone Aquarium Fish Tank Pond Pump