I have always kept an eye dropper in my house mostly for when I find a baby animal that I want to try to save. The last thing I used the dropper on was a little bird with a broken wing that I rescued out in my yard. Using the dropper, I would suck little pieces of crab meat mixed with water to the end of it, and the bird would eat the crab meat off the end of the dropper.

Many uses, for kittens, birds, etc. Always a great item to have around and very inexpensive for it's many uses!

Pros: nice to have around for special situations, inexpensive

Cons: none

Even if this dropper isn't calibrated, you can administer the tiniest dose to a tiny creature, whether it's oral or optic medication. I've used it on an orphaned baby squirrel and on my kitten. It's a core part of my veterinary medical kit.

Pros: Excellent dose control

Cons: None