Bend a bar magnet into a “U” shape, and what do you get? A stronger magnet! Why? Because the poles are side by side. Alnico versions are strong and durable. Includes 2" tall alnico horseshoe magnet and keeper. For ages 6+..Magnet.2" Alnico horseshoe magnet.Red.2" Length.Experiment! Examine! Explore! With Dowling Magnets Products!