Exquisite Appearance: Each mini keg has an exquisite exterior design, bringing a small surprise to every person who appreciates a tasteful life, whether it is for personal use or as a gift for friends and family. Pressure Adjustment: You can fine-tune the pressure by rotating the adjustment knob according to your beer type, ensuring a perfect carbonation. You can use 16g 3/8-24UNF to inject CO2 into the keg. Keep Your Beer Fresh: The mini dispenser system can maintain vacuum pressure in the keg and keep fresh of homebrew, draft and craft beer for few months. Vacuum Sealing: The mini dispenser system maintains a vacuum pressure inside the keg, keeping the beer fresh for 1-3 months. Remember to purge the air inside before use. Portable Size: A 128oz carbonated beer mini keg, with dimensions of 5.3 x 7.7 x 18.3 inches, comes with a built-in portable handle. It is suitable for home gatherings or outdoor camping.