From the product description, check product page for current description, price and availability:

These 16 gram cartridges fits our Micro Regulators and most Cartridge Injectors that use 16 gram cartridges. Filled with pure CO2 suitable for beer use, they also fit most bicycle pump type injectors that take 16 gram threaded cartridges. These are 3.25″ long, .732″ diameter, with a neck threading of 3/8-24. These also fit the simple ‘bicycle type’ inflators that use 16 gram unthreaded cartridges. Does not fit the Core 360 Regulator. Box of 10.

Product of Hungary.

RESTRICTED SHIPPING- Ground shipment only, air shipment not allowed.

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