I just bought some yesterday, He LOVES them,and he doesn't inhale them, like other things, he has had the same one for 2 days , chews on it alot,and hasn't made a dent in it. He actually growled at the cat, when he walked by, thining he might take it, he has never done that, must be some good stuff.
The one I bought was 1.99 a piece, Bully Stix,it says as ingredients - tendond..

Oh well, he loves it.
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Rhonda, Bailey, Josie and my angel Bella Rue'
"Until one has loved an animal, a part of one's soul remains unawakened."
~Anatole France~