Oops, here's another of my late replies. I always order bulk quantities of USA made 4-5" rawhide bones for Logan. I had always given a larger size to Cody every night to keep his teeth and gums clean. When I adopted Logan (Klo) her teeth were slightly discolored, but once I gave her a rawhide bone every night as a treat (and believe me, I get nudged to death if it's past her "time") she has the whitest teeth, Luckily, I never had a choking problem, and I sit next to them watching TV (our ritual) to keep an eye on them. (speaking of Cody in present case) I decided not to give Logan pig or cow ears as I did my big galoot Cody, only because I wanted to stay with one big treat. I know there's so much controversy about rawhide, but I find it a dental necessity. Logan loves greenies too and Pedigree dental bones. All the above turned her discolored teeth into a pearly whites!