Everlastin treat balls
I gave this to my sheltie mix dog 2 yrs ago. I found she was wearing her teeth down with bones or other hard chewies. She also had a bit of a nervous need to lick. This ball solved all those issues we own 2 of them and Our dog LOVES them. She has not been able to chew through the ball but she sure likes licking and digging her treats out that you can tuck in on the other side of the ball. Have to order extra balls from US now though.