At the product is hard to fault and what it has been amply described, but a price comparison is always worthwhile: On 18/10/2013 a 9-pack cost of Amazon (herself) to the 27E (no joke!) Are WHILE to pay more than 38E for the 6 pack. On 10/21/2013 a 9-pack cost suddenly 55E (certainly not a joke!). Once I've found that my order was sent from 18:10 from England, I looked at Amazon UK and there are the Sangenic refills to have much cheaper at the time (all package sizes): for example, 9-pack for about 30, delivery to core Europe Included. This does not have to stay that way, but I will not order hasty but only compare.