I have a 6 1/2 lb boy, a 3 lb girl and a 4 1/2 lb girl. Not to mention a little over a 100 lb Golden Retriever who plays with them all. No problems with any of them. Once in a while Rascal (our boy) gets a little rough and make one whimper.. but if they do he quickly stops.

Our Golden plays soooooooo gentle with all of them.. shes so sweet!