Got one of these in my bark box and it's been a hit with two of my blue heeler girls (both 7) and my 2 new Catahoula/Blue Heeler boys (5 mos old). Basically, one of my girls had really bad dental issues - every year since she was 3 yrs old required a majour cleaning. She was due for another cleaning, with majour tarter and plaque build up on her back teeth. In short, she never cared for hard chew toys - EVER - and she loooooooooooooooves this toy. She's chewed it so much that she actually removed a good portion of her tarter buildup to the point she doesn't need a dental cleaning. Her sister benefited in the exact same way. As for my boy pups, it's helped them through their teething.