I bought the one with the nubs on both sides today at Walmart. It's like a hand shape, you can put your hand in it. It has big ones on one side and smaller ones on the other. It was like 5 dollars or less. It works great and they LOVE it. The only problem I have is getting the hair out of the smaller side. Any ideas?? I ran it under the water, but that didn't work, it just got all stuck in it.
I looked at the kong brand one, and it was like 12 dollars or more. I didn't want to spend that much. Besides, I have one that is exactly the same, that I have used to massage them. It might even be the kong brand, I don't remember, I ordered it out of a catalog a long time ago. Didn't think of using it as a brush, but might try now. I like the one from walmart, the nubby things are closer together than the zoom groom, or whatever it's called.