These things are very relaxing and nice, and they are called one of the "Three treasures" of baoding, china. What are the other two???

Does anyone here know, or are anyone's internet skills honed enough to search and find it?
Jake0steve Reviewed by Jake0steve on . Chinese Baoding Balls These things are very relaxing and nice, and they are called one of the "Three treasures" of baoding, china. What are the other two??? Does anyone here know, or are anyone's internet skills honed enough to search and find it? Rating: 5