Pack of 25 red ceramic horseshoe magnets with ends stamped to indicate poles North (N) and South (S). These economical ceramic magnets work well for teaching about magnetic poles, attraction and repulsion, and many experiments that call for horseshoe magnets. Ideal for activities that do not require a lot of lifting power. These magnets are not designed to be holding magnets. Ceramic magnets are brittle (like a coffee mug!) and may chip or break if dropped. Ages 8+Each ceramic horseshoe magnet measures 1.25" tallNorth and South poles indicated with N / S stampUseful for demonstrations and science projects Great for the classroom