mont-bell Gas Cartridge Tube Protector 110 (For 110mL Gas Cartridges) Neoprene gas cartridge protector Prevents reduced firepower in low-temperature environments Protects from impact and cold Stabilizer can be attached while the protector is on I bought this intending to use it, but it has been stored unused for a long time. I will sell it since I won't be using it. *The plastic bag is torn in two places. See photo 8. Thank you for looking.