These cube magnets are strong enough to attract each other through the palm of your hand and it takes a bit of determination to separate two of these magnets. They are also great for use on magnetic glass boards, for example, where these cube magnets securely hold notes and more substantial cards.

0mm x 10mm x 10mm neodymium cube magnets – Cube-shaped magnets are somewhat unusual. These are strong enough to attract each other through the thickness of a hand. It takes a bit of
determination to separate two of these magnets from each other.