uxcell Fish Tank Rain Bar Unit Outflow Pipe/Hose, 25mm by 22mm, Gray Rain Bar Unit; Fit for : Aquarium, Fish Tank Material : Plastic; Color : Gray Length: Small:1.5cm/0.6'' Maximum :11.2cm/4.4'';Tube Inner Dia. : 22mm/0.86" Tube External Diameter : 25mm/0.1";Net Weight : 108g 1 x Aquarium Rain Bar Unit (6 Tubes)