If you have multiple pets in a cage or a big drinker, 16 oz. bottles are better than the 8 oz. Good construction. We use this at our adoptions where the cavies only need water for a few hours. In their regular cages, 16 oz size is better so they don't run out of water.

Pros: leak proof

Cons: 16 oz is a better size for guinea pigs

We have used different kinds of water bottles for our pets. We have found the bottles keep the water cleaner. but if you have the plastic ones, be aware of pets that like to chew.

Pros: keeps water clean

Cons: if plastic, danger of chewing

When we have small pets at the shelter we use this. It doesn't drip like most.

Pros: doesn't drip

Cons: nothing

This is great! When I had hamsters I used this!

Pros: everything

Cons: nothing

This is great if you have gerbils or hamsters.

Pros: everything

Cons: nothing