trying to find long-lasting dog chews

Let's give Kanga a hairy cow ear. She's a tough chewer and we're trying to build a roster of long-lasting chews, so I give her 15 minutes of chew time to see how much she can get through. This is supposed to be highly digestible because it's a single-ingredient chew made of cartilage. They're low in fat and rich in protein and fiber, and the dense texture and fur support dental health. In 15 minutes, and this is her progress. There's not really a strong odor, it just smells a little beefy. I got this from Litto Howler for $12.99. They said the fur on this helps clean teeth and kind of brush through their digestive tract. This is going to last longer than the hairy cow snout. It doesn't really smell and she's a big fan, so it's Kanga approved.