WOW!  My two picky boys didn't hesitate to devour their first kangaroo chews!  Now, time will tell, if they are easy on my schnauzer's tummy.  He tends to get the runs from anything new.  I hope he doesn't because they really like these.  They're a nice size (about 9") and fairly hard.  I couldn't break one in half with my hands, but my boys had no trouble chewing them.  Which is kind of a bummer because I was hoping they kept them busy longer.  Although, they don't really need to clean their teeth because they are on a raw diet and the chicken drumsticks they get keep their teeth clean, clean, clean!  I won't buy the odor free bully sticks because they still have an odor I just can't get past.  Ew!  The Croc bones are popular with my boys too, and they last longer than the kangaroo jerky.