... -5 days delivery 5.23 year experice WINCHOICE NEODYMUIM BALLS, used for jewery, indistry, toys---- cheap,high satisfaction ... relief, boredom busting, dual hemispherical brain stimulation, also can create much Innovation which is the key to life, ... production , best price and high quality Prducts nameN35 Magnetic Balls With 5mmBrand nameWinchoiceMaterialNeodymium, rare earth materialTolerance5+0/-0.1 ...