Dowling Magnets 3-Inch Alnico Bar Magnets, Set of Two Magnets (Bar Magnets for Science Classroom) with North and South Poles Clearly Marked/Stamped. Learning Magnets. Item 731011.

Description Sometime simpler is better! Economical magnets in a basic bar shape feature an opposite pole on each end, creating an interesting arc-shaped magnetic field to explore.

Ideal for activities that do not require a lot of lifting power.A pair of 3” Silver Alnico Bar Magnets with North and South poles stamped.

Great Science Magnets For Experimenting & Fun!*Alnico magnets are made up of Aluminum, Nickel, and Cobalt.

Generally, alnico magnets have a greater strength and durability, whereas ceramic varieties are lighter and more inexpensive.