Self-service packed, 2 pieces, with thread, for all CO² cartridge pumps. Accessory type: Main colour silver. Cartridge type: threaded. Threaded CO2 cartridges inflate tires in seconds. The cartridges can be used with all inflators on the market. The cartridges are made of 100% steel and are recyclable. Cartridges should be disposed of in the appropriate recycling bin. Want to know if you have the right size cartridge? Check the usage chart to choose the correct cartridge. Quick inflation, Recyclable, Box of 2 pieces, Content per cartridge: 16 grams, Zefal Article number: 712275, EAN code: 3420584251006, Retail packaging: Yes