Recently, it expanded while being washed, and it can no longer be used as is. Therefore, you will need to install a new cylinder kit (TK-2000 dedicated cylinder kit A-KIT) for approximately three to four thousand yen. It has been inspected and confirmed to have no air leaks. It has the cherry blossom mark. The cartridge in the photo has been used and will be discarded. - Model: TK-2000 - Manufacturing Year: January 2007 - Color: Red - Type: Type A - Features: Automatic inflatable type upon falling into the water Thank you for viewing.