Perhaps the most well known shape of all magnets, horseshoes wrap around an arc-shape to be open at one end. Horseshoes are only available in Al Nico.
The dimensions for horseshoes are Width (Outer) x Height x Width (Inner) x Thickness (mm).
38 x 25 x 19 x 25mm Horseshoe with 5mm Hole (Al Nico)
Sale price$33
30 x 19 x 20 x 14mm Horseshoe (Al Nico)
Sale price$22
28 x 25 x 6 x 8mm Horseshoe (Al Nico)
Sale price$13.20
78 x 54 x 82mm Power Horseshoe with Holes (Al Nico)
Sale price$330
56 x 46 x 30 x 24mm Horseshoe with 5.5mm Hole (Al Nico)
Sale price$55
86 x 70 x 54 x 45mm Horseshoe with 7mm Hole (Al Nico)
Sale price$440
62 x 51 x 30 x 24mm Horseshoe with 6mm Hole (Al Nico)
Sale price$88