This is a Doraemon inflatable ring, 55cm in size. I think it's suitable for children from kindergarten to lower elementary school. There are no holes or noticeable stains on the inflatable ring itself. * There is an inner valve in the air inflation hole, and it seems that the inner valve is broken. Although the description says that "the inner valve closes due to the internal air pressure," the inner valve does not seem to close. If you insert the top cap, the air will not leak. (Second to last photo) * Since it has been used in the sea and rivers, small sand has gotten inside. (Last photo) It will be folded up small for shipping. Please purchase only if you understand the above.