I also like the little tennis balls. They are perfect for Paddington, but Heidi (my brother's s**tzu poodle mix) who is slightly bigger than Paddington can fit them all the way to the back of her mouth, which means they are too small. We have to make sure to pick them up and put out larger tennis balls (the same company also makes them a bit larger, perfect for both heidi and Paddington) whenever she comes for a playdate.
-O |