With this perfectly hemispherical shape and high-gloss, polished finish, these are ideal for design-orientated presentations, whether they\'re in meeting rooms, agencies or museums. Whether you want to elegantly underline your corporate identity with matching colours, or choose something deliberately contrasting, they\'ll look great, and have a pleasant feel too. The undersides of the ferrite magnets have been painted to protect the magnetic surface, and they sit inside sturdy, shatter-proof plastic casings. They\'re 20mm H x 30mm W in size, and come in a range of versatile colours. They ensure nothing gets lost, and are great for hanging items on practical metal boards. It\'s been manufactured in Germany too, via a low emissions process. Includes one ball-shaped magnet in each colour - white, yellow, red, blue, magenta, green, dark purple, grey, black and silver. Colour: Black