Bought a packet of these as something new to try for our greyhound. Sadly only 2 were really of a good size for him. The others were very small and thinner than a pencil. There were a decent amount for the money, but the amount of tiny chews was a disappointment.
That being said, they last longer than expected. Only 2-3 minutes, but they're so small I thought he'd crunch them like a crisp & that would be it! A big drawback though is how dribbly they make him - big puddles of gloopy drool, grim!