I ordered this 12x 250 ml at GASFRITZEN24. What came were 300ml + 50ml Bonus doses. In the covers the usual adapters that I 250ml gas cans also used to be very expensive purchased RONSON. Here now but at a fraction of the price. The differences in prices of the lighter gas cans are similar vast as in the gas cartridge for camping supplies and everywhere is just butane in it, possibly some propane. The delivery, at least from this retailer is simply powerful powerful as the Olsen Gang would say. In this respect, a buy recommendation with the caveat that I do not know if all the dealers provide the same product. PS: The package also houses still lay a folded original carton manufacturer, obviously a so-called. Sales display.