Good quality fat balls, but need microwaving to soften them
I have always bought these fat balls from Zooplus, however, in the colder months they have arrived harder which is normal since they have been in a warehouse/storage.
I therefore put a few in a bowl and microwave them for a minute or so, then they become softer and I the birds can eat them more easily, since many are unable to eat the fat balls when hard. I even break them in my bird feeder stand also after microwaving them.