Advantages of neodymium magnets: high adhesive force with small volume. Extremely strong magnetic adhesive force. 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 punch. Aesthetic in shape and surface, blends discreetly into any environment. Solid refined steel casing. Please observe the safety advice for neodymium magnets at www.maul.uk.