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.