The choise is yours

and the strenghth is approx

as the magnetic foil is strong with its 1 mm

White magnetic foil with black number "2" printed on the front

This is a classic green whiteboard marker

Magnetisk ståltavle Ø44 cm. RUND inkl. 10 magneter Auto-translated (NO) The choise is yoursRound steel board 44 cm. from Trendform. Made of stainless steel high quality pure steel that is very magnetic. Diameter: 44 cm. Thickness: 1 mm. Colour: Pure steel (silver). You get the round metal board and 10 pcs. small, strong magnets with this product. The board has 2 pre drilled holes for easy installation on walls. You can use all kinds of magnets on this board. Gives a stylish look to the kitchen or in the office where you need to hang up