I am selling a mini gas adapter and 5 x 74g mini gas cartridges for a beer server. This is a new, unused set, so you can use it with confidence. Compatible with all major brands: Asahi, Kirin, Sapporo, and Suntory. The mini gas cartridges have been stored, so please refrain from purchasing if you are concerned about minor details or are overly sensitive. Returns are not accepted to prevent product substitution. Thank you for your consideration.