Product Description: Management No. 419 These are Chinese "fitness balls" (健身球). They are made of metal and feature a traditional Chinese design. They are health goods used by rotating the two balls in the palm of your hand. They also make a cool sound. Includes instructions in Chinese. ◾️Product ・Fitness balls *Includes box and instructions ◾️Condition ・No noticeable scratches or stains ◾️Shipping Method ・Mercari delivery ・Simple packaging ◾️Other Notes ・Stored at home ・Please check the photos for details on the design and condition. ・Please understand that these are used items before purchasing.