Feature:1. Oxygen pump kit with 1 air stone, 1 air hose (90100cm or 35.439.4in), and 1 blue check valve.2. Soft rubber foot pads reduce the vibration effect of machine operation and low noise.3. Nontoxic and harmless to your fish, providing uninterrupted bubbles and highquality oxygen supply.4. Easy to install and use, and it can connect the air pump with the air pipe and the air stone.5. High efficiency and energy saving, good oxygenation effect, suitable for fish tanks, aquariums, etc.Specification:Item Type: Aquarium Oxygen PumpMaterial: PlasticWeight: Approx. 158g or 5.6ozProduct Size: Approx. 10.6x5cm or 4.2x2.0inPower: 2.5WFlow Rate: 1.2L or MinAir Pressure: 15kpaPurpose: Suitable for aquaculture and oxygenation in fish tanks.Package List:1 x Oxygen Pump1 x Air Stone1 x Air Hose1 x Blue Check ValveNote:1. Please allow 02 cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. Ensure that the local voltage supply is consistent with the working voltage of the product.4. Do not use this product for purposes other than the specified purposes. If you use parts and accessories that are not the product provided by the manufacturer, it may cause damage to the product and person life safety. Do not use it.5. Make sure your hands are in a dry state when you turn on or off the power switch and insert or unplug the power plug.6. When installing or disassembling this product, you must first pull out the plug and cut off the power supply to ensure safety.7. If you have any questions about the installation or safety of this product, you can consult a qualified electrician.