Magnets, Plastic Covered, Red/Blue (Pair), 3" X 1" X 0.5", 1 Each

Magnets, Plastic Covered, Red/Blue (Pair) by United Scientific are two alnico bar magnets, each 80 x 15 x 10 mm, encased in red and blue plastic for added durability. The matched pair is used in classrooms to demonstrate attraction and repulsion, map magnetic fields with iron filings or compasses, and give students hands-on pole practice without chipping bare magnets.