This Aspen Ringed Ferrite Magnet comes with Steel End Caps and Steel Rings. Sizes:3 1/8” x 3/4” (79 x 18.5 mm). Cows eat everything including nails, staples and bits of tramp iron. These items can threaten the surrounding vital organs and causing irritation and inflammation, known as Hardware Disease. One magnet works for the life of the cow!!
MagnaCow® magnets help prevent this disease by attracting stray metal from the folds and crevices of the rumen and reticulum.