I think the Tricky Treat Ball is one of the best treat ball on the market. I had a large one for my Lab. I used it to occupy her when she was left home alone or when she needed to be out of the room because we had visitors.\n \nWhen I got Misha, I bought her a small one. She's only 9 lbs. and I thought the large one would be too difficult for her. I was wrong! She loves to play with both. She bats the small one with her paw in a corner of the room. The large one she carries around and flips it to the ground. It's funny to watch her carry it since it's larger than her head. I don't know how she does it.\n \nWith Misha, I use it to slow down her meals. She is one of those dogs who take about 3 seconds to finish a bowl of food. I put her dog food in her Tricky Treat Balls. It takes her about 10 minutes to empty both of them. I think it's better for her digestion.\n \nIf you haven't seen these before, they are round balls with one hole to pour in the treats. The large ball has oval indentations so the dog can pick it up more easily. The smaller sized one does not. The dog has to push the ball around to get the treats to dispense.