Revitalizes iron, nickel, cobalt, and alnico horseshoe and bar magnets in seconds. Simply place magnets in the 3 x 3-cm holes and press the button to make old magnets new again. Three bar magnet keepers are included to accommodate magnets with unusual shapes. Instructions are printed on cabinet for easy reference, and a comprehensive instruction booklet is also included. Available in 2 versions: 115-V AC and 220-V AC. 220-V will not work in the US.