While you are awake... while you are asleep... your heart is always beating.
We've paired two of our favorites in this set. Learn about the heart and circulatory system in the book and listen to it beat with our authentic stethoscope. Ages 5+.
It stays together, but parts of it will fall out. Like the rubber tubing will not always be connected to the thin metal if that makes sense. It really isn't great quality and i should have just purchased my kid a real one.
