Sometimes 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. Learn all about magnetic polarity! Plastic encased ceramic magnets are color coded to indicate North and South poles. Details:Red and blue poles3.13" x 1" x 0.38"3 packs (2 magnets per pack, 6 magnets total)Ceramic with plastic casingFor ages 3 and up