30 x 20 x 20mm Red Alnico Horseshoe Magnet, 4.5mm hole - 4.5kg Pull (Pack of 10)
The Alnico magnets North and South poles are on opposite ends which makes it perfect for classroom demonstrations. Material: AlNiCo. Shape: Horseshoe. 30mm x 20mm x 20mm. Height: 20mm. 4.5kg pull. Slide Resistance (Kg): 0.9.