I am going to order some of these. I bought Huey a kong that I was feeding him out of, but my hubby kicked it one night and stepped on kibble with his bare foot and has now forbidden the feeding of kibble via kong. Now poor Huey bats that kong around and tosses it trying to get something out of it, so nightly after he has eaten dinner from his bowl, I put a few cornflakes in the kong as a treat. I switched from cheerios to cornflakes because they are harder to get out and present more of a challenge. (And if hubby steps on a cornflake, it won't hurt his foot.) He LOVES it! I can't wait to get him some puzzle treat toys.