My dog loves these! He has a lot of allergies and cannot have most treats. These are his favorite! He will actually eat them down to little nubs (it takes him months). He loves the fleshy part and especially the marrow. When he gets most of the marrow out, we will put other goodies inside (like peanut butter) which keeps him busy for quite a while! Be careful though, if left on blankets/sheets or light colored carpet, it can cause staining (from the oils).