I live in a place where you can't just go out and buy one or even a pack of 5x20 fuses. I've only ever ordered what I need and waited for the backup, which isn't ideal. I don't know why I've never had such a variety of packaging before, but it was great to have. 10 sizes from 0.2A to 20A is a huge range and 10 of each size are packed in a nicely labeled box which closes with a latch. The values are also marked on each fuse so that they can be easily distinguished from one another in case of confusion. That's a good price for 100 fuses and I've already replaced a few in some of the units I have and they work. Spring. No problem and I trust these fuse values to be correct, I don't have a great way of checking them all myself. Overall I'm happy with them and happy to have spare fuses on hand if needed.