Excellent cartridges, convenient batch 100 because the quantity / price is interesting. The question is whether Amazon has more to offer us even cheaper ... :) so everyone will be a winner .. :) .. Example batch of 10 signs in (which could make bread ...) at a price 6 is way too much for gas ... 60 100 ... So be boycotted and buy cheaper on the internet ... And let those who want to throw their money away ... :))