Master Magnetics 07239 Original Cast Alnico 5 Cow Magnet， 0.50" Diameter， 3" Length， Silver (Pack of 2)</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>The original cast Alnico 5 cow magnet， bright metal finish， rounded ends that has been the favorite of dairymen and veterinarians to prevent Hardware Disease in cattle for nearly 50 years</li><li>0.50" diameter， 3" length (12.70 mm diameter， 76.20 mm length)， solid， seamless， smooth， cylinder shape with rounded ends， magnetized completely from tip to tip</li><li>Powerful cast Alnico 5 magnet creates superior magnetic' field projection， consistent pulling force along length， and alignment of tramp iron parallel to magnet</li><li>It is non-toxic and non-corrosive in use</li><li>Administer with ordinary balling gun. One magnet works for the life of the cow!</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/41zLcDMigJL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/413d5W%2BR80L.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/510yviJx72L.jpg' noproxy></br>