AOMAG(r) Alnico U100x62x20mm Magnet Kit for Education Science Experiment Horseshoe & Magnets Powerful

Features

• 4 Inch Horseshoe Alnico Magnet
• Painted With Keeper
• This alnico magnet is carefully painted with the North and South poles marked.
• Included is a steel keeper bar (not pictured) to protect the poles from damage or loss of magnetism.
• Alnico is an acronym referring to a family of iron alloys which in addition to iron are composed primarily of aluminium (Al), nickel (Ni) and cobalt (Co), hence al-ni-co.