Surprised this isn't in a review. These rattles are tiny and in different shapes and when shook you can hear a rattle which can amuse babies for a long time. I do recommend them, but to be used only with supervision as I tend to think of breakage (they are fragile)

babies love rattles the sound that they make keeps them so occupied

You can't go wrong if you buy an ordinary blue or pink baby rattle. Babies love them, and they look so adorable playing with them and/or trying to grasp them. A really good toy for dexterity