This air pump is well built to produce a good volume of air quietly with its low power consumption. Makes your aquarium oxygen levels high and helps keep your fish healthy. Features quiet, compact size and lightweight. Features - Color: Yellow - Material: Plastic - Size: 6.5x3x3cm - Multi-level muffler, low noise. - Oil-free compressed air pure. - USB Power: Support USB charging and home directly connect. - Wide Compatibility: This oxygen are great for small and medium fish tanks and fits all kinds of aquarium creatures. - High-performance, this section is for small and medium-sized fish tank plus oxygen. - Low-power, economic power-saving, Continuous operation and . - Warm Tip: Dear buyer, due to lighting effect, monitor’s brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you! Package list: 1 set of Oxygen Pump