Advanced Bionics Slim HP Standard Instructions For Use Manual page 9

Remove the magnet from the magnet well by pushing the
magnet up from the underside of the Slim HP.
Replace the magnet as needed using the minimum
magnet strength required to maintain retention. When
inserting the magnet, align the triangle on the side of the
magnet with a notch in the magnet well of the Slim HP.
For Slim HP 3D Magnets, orient the arrow on the magnet
in a general upward direction when inserting the magnet.
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