Good treats/Whimzees for chins?

I work at a pet store and we sell a vegan dental chew called Whimzees. They are marketed as a dog treat however I know customers who give them to their hamsters. I understand that chins have very different digestive tracts than a hamster but I figured it would be an awesome treat/toy if they could eat them. I just am having a hard time figuring out if the ingredients are safe.
The ingredients are;
potato starch, glycerin, lecithin, malt extract, and yeast.

Thanks.