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The omega paw one smartrock listed Hemi chewed right through it in a day. However other people have really recommended it. I had not luck with it.

However the Kong wobbler is a fantastic one and...

Hemi really likes it. I had to work with him a bit at first cause he wanted to just brute force it. But I showed him how to work the different puzzles. I laughed at him at lunch today. I got the mat...

One of the presents Santa brought Hemi is the Buster Activity mat. Plus he got 3 additional activities. This has really helped us.
if you have never seen the mat.

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