The "Magnetic Stone Jewelry" Magnetic Sound American Football Trinket,also named Magnetic Rattlesnake Sound Eggs, are high-tech products of brightness and rigidity and has 60*18 and 45*16 two kinds of specification.That product can not only be used as the toy, but also can be used as thetool for health care massage. While separating the two trinkets and throwing them in the sky, they revolve with high speed and attract each other,sending out clear and crisp singing voice through the high speed revolve rub. That product is also extensively used for the function of massage.Because of the megnetism,It can better promote the blood circulation, and is a very popular massage product.