wood from forum members much better as Dawn (ticklechin) mentioned. I know when I first got my chin I got lots of things from Petsmart. Then I joined the forum and learned what's better for my chin. I haven't been to petsmart in 3 years because of it. Treats that are great and cheap for chins--plain shredded wheat, cheerios, dried rose hips, a small pinch of old fashioned cooking oats and wheat pasta