Hi Mai26, This product has been tested for toxicity and has passing test results. As mentioned on the product warning, the product should be inspected regularly and replaced if any part becomes damaged. Thanks,

I used this dish for food only briefly and my 2 ferrets figured out how to lift it out of the holder. I am having the best luck with the “ You and me Lock Crock”. The 10.98 oz works well for us with daily cleaning and water changing.  It is the only dish they haven’t been able to pull off the cage.

I would probably go with the medium size. Says it is for the birds 3 inches tall and it would not be too big; pictures are just selling points. I read the reviews and most people got them for budgies. Hope this helps.

The bowl just sits in ring. If you have a busy bird they can pull out. 

Yes, the small size is perfect for finches! I have a finch and a budgie who live together and they use the medium bowls, but Abby (my finch) tends to bathe in it. I also have the large and small sizes, and Abby doesn't bathe in the small-sized bowls as it's about the size of her! I like to put the large bowl in their cage so they can both use it as a bath. (TIP: If you want to pretty much eliminate the possibility of your finches pooping in these bowls, make sure you put the bowls at the top of the cage with no perches over it!)

What size bird do you have? Conure you'll need large .and would probably fit

This would be good for your Chinchilla. I used it for all my birds as feed/water bowls and the larger for bathing bowls. They are very easy to keep clean and prevent bacteria build up you would get with plastic bowls.

Yes, the large size would perform well in your dog's crate! If you have a large dog, it may be a little too small depending on how much you feed your dog. But I have one of the large-sized bowls and it would perform perfectly with the 1.5 cups of food I give my dog.

Yes! In fact, these bowls work best when they are attached to bars that run vertically (up & down). Depending on your cage's bar spacing, these bowls can also be placed on horizontal bars. If the spacing it too large, the ring the bowl hangs on will fall. Hope this helps!

The dish diameter, based on the rolled top edge, is 3".  The bottom diameter of the dish is about 2.5", which means this dish slightly flares outward as it goes up. The metal ring that holds the dish has an inner diameter of approx. 2 and 15/16".  It is almost 3 inches, but not.  Trying to find extra dishes that safely fit in this has been difficult.