Peaty's CO2 Cartridge Refill Five Quick Fixes in One Pack This refill pack keeps your Holeshot CO2 inflator ready for the next flat. Each pack has five threaded cartridges, and a silicone sleeve with a closed base keeps your hand from freezing as the gas empties. Pick 25g cartridges for mountain bike tires or 16g cartridges for road and gravel. Features Five threaded CO2 cartridges per pack, enough refills for several flats25g size, for MTB tires Freeze protector sleeve, a closed-base silicone design that shields your hand from the cold Made for Holeshot CO2 inflators, threaded fit for quick, straight-line inflation Low-waste packaging, recycled cardboard header card and biodegradable bags SPECIFICATIONSIntended Use Tire Inflation, Trailside Flat Repair Cartridge Size25g Quantity5 threaded cartridges Included1 freeze protector sleeve Compatibility Peaty's Holeshot CO2 inflators (do not use cartridges over 25g) | Peaty's | Co2 Cartrdige Refill With Sleeve, 25G, 5 Pack