The product description says "it will fit perfectly a gas tank with a maximum diameter of 75 mm" – nonsense that nobody has verified. The diameter of the Sabre Frontiersman gas tank is 53 mm, and the rubber of this holster is already so tight that I would call it an absolute maximum, and even then only technically, not practically, because it's hard to even pull out such a tightly fitted canister, let alone insert it at all. I think I even know where that value came from. If you put your index fingers inside the rubber loop and stretch them apart, you can extend it to about 7.5 cm. But this does not translate to the diameter of the cylinder you can push in there, only to half its circumference, which matches the Sabre case.