Bundle Includes 1 Blue 7.5" Horseshoe Magnet & 1 Blue 4.5" Horseshoe Magnet. Extra-strong, horseshoe magnets. Explore the world of magnetics with these easy-to hold horseshoe magnets. LARGE - 7.75" X 7.5" X 1" Blue Horseshoe Magnet. SMALL - 4.62" X 4.62" X 0.75" Blue Horesshoe Magnet. Anyone that loves magnetism will enjoy having these around to play with or stick on something metal. Spilled your sewing needles or box of nails on the floor? Perfect for picking up small metal items quickly.