Threaded CO2 Cartridges 16g - for All CO2 Bike Tire Inflators with Threaded Connection - Refill for Bicycle Tires - 12PCS Cartridges, Insulated Sleeve Included,Inflator Valve NOT Included.

Worked great easy to use one cartridge filled both front and rear tires

This super useful when you find yourself in the middle of a ride and you get a flat tire. Great value and price! Totally recommended.

One cartridge will get my conti 5ks back to pressure after a puncture/flat. The foam sleeve that comes with them is fine, but I usually just cut a piece of old tubing and slide it onto the cartridges. Good price at the time of purchase. I love how fast they let me get back in the saddle after an incident with sharp objects in my tire tubes. I also use these with my tubeless mtb tires with mixed results depending on the sealant (read the label or try it at home first! YMMV).

Great product, works as described. We use these for anesthetizing bees for mite counting with a handheld portable bicycle tire inflator. The co2 knocks out the bees in the bee rolling counting tub, then the bees “wake up” when removed from the co2 gas environment and returned to their hive. We prefer not to use the alcohol or soapy water methods as those method kill up to 300 bees per counting roll. Save some of your bees when doing mite counts.

arrived packaged well. none pierced, all in tact. comes with sleeve, like advertised, to protect fingers from the "icing" over when used. very nice! happy with purchase. if you ride road, get these.

They work fine and I don't think I'll ever run out with this box fill.

Great tool for bike rides, one cylinder fill a tube quickly and easily to get home or keep you in the road.

I always carry some of these when I ride my motorcycle. Cheap insurance!