Rudolph the red nosed reindeer

It is not electromagnetism

For stability

so they work on whiteboards or metal boards

The back side of the arrow magnets are dark gray and magnetic - the front is only slightly magnetic but still strong enough for you to place e

Power magnet, Skive 25x7 mm. 3M Rudolph the red nosed reindeerNeodymium magnets Permanent magnets Diameter: 2. 5 cm Height: 0. 7 cm Strength: approx. 12 kg. This magnet has an impressive direct pull of 12 kgs. despite only being 25 x 7 mm. These powerful magnets adhere to all magnetic surfaces. SPECIFICATIONS: Strength: approx. 12,000 gr. Material: NdFeB Magnetisation: N42 Gauss: 12900 13200 (1. 29 1. 32 T) MGOe: 40 42 Max. temperaturee: 80C Surface: nickel plated (Ni Cu Ni)