Magnet Stirrup, 1 Each

The Magnet Stirrup by United Scientific is a brass support, 3.5" x 2" x 1", with hooks spaced 89 mm apart that holds a bar magnet or friction rod so it can hang and turn freely in a horizontal plane. Physics teachers use it to show a suspended magnet aligning north-south, pole attraction and repulsion, and electrostatic forces between charged rods.