Advantage of neodymium magnets: high adhesive force with small volume. Extremely strong magnetic adhesion. Round shape with rim for good grip. Puristic, elegant and modern, for design lovers in prestigious spaces and museums. Environmentally friendly cardboard packaging, recyclable, with Euro-hole cutout. Aesthetically pleasing in shape and surface, discreetly blends into any environment. Solid refined steel casing. Please observe the safety advice for neodymium magnets on www.maul.uk.