Maybe you know this magnetic block from physics class

Magneterne har runde hjørner

remember to wipe your magnet to remove water when you have finished using it - just use a regular

so that there are no small stones or dirt that can create distance and cause the magnet to fall off

som dine køreskoleelever bliver bedst muligt klædt på i forhold til at forstå

Undersænket powermagnet 80x20x4 mm. boardmarker mix Maybe you know this magneticOblong magnet made of neodymium with 2 countersunk screw holes. Sold individually (from 1 piece). Size: 8x2 cm. Height: 0. 4 cm. Screw hole: 4. 5 mm. (x2) Length between screw holes: 40 mm. Strength: approx. 18 kg. To firmly secure, screw the neodymium magnet onto a piece of wood or other plane surface point that is not magnetic. Once fastened, the magnet will provide you with a magnetic surface with really strong holding power. Keep in mind that this