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. Easily lift 4 lb. with a 1" tall alnico horseshoe magnet! Details: Red 1" tall horseshoe magnet Includes 8 magnetsIncludes keeper Lifts 4 lb. Great for science projects For ages 8 and up