"I have a small dog. He loves to play ball. He really likes tennis balls, but they are too big for his little mouth. I found some small sized tennis balls and a local store, but I only get two in a package, and he's always losing them. So I bought these balls as a backup for when he loses his favorite balls for good. The balls are smaller than I thought. They are very heavy and don't bounce all over the place, which my mother loves. The colors are nice, but all he sees is "ball". The only issue I have is the way they are put together. There are two different colors of material on the ball, and when my dog chews on the ball, he can get into the corners of the material and tear them apart. His bigger tennis balls are a solid material and he can't chew them apart. Otherwise, he loves the balls, and they are perfect for his little mouth."