"It's good because with Button Quails, they don't perch, so they used to just step on and soil the millet, which doesn't make for a happy owner. So, I got these and they are great! You don't have to always replace soiled millet, and it doesn't break off all over!
The only problems are that it is kind of hard to fit on the wire, and most of the piece doesn't fit in the holder, which makes the pieces fall off.
Other than that, I will still keep using it!
TIP: They may not use it at first, but after they get used to it, they will soon find out that a tasty treat is in there!"