Heavy Duty Cow Magnet has five alternating North/South poles for powerful contact strength. Magnet has metal connecting core and white plastic ends and are 3 1/8 inch long and 3/4 inch in diameter. We recommend Coburn's CP0100 or 29361 Gun with 29355 h…

Round Stainless Steel Magnets are made of stainless steel nickel and aluminum and are polished to a smooth finish. Each magnet measures 1/2" x 3". For inserting magnet use a balling gun with a 7/8" head such as our CP0100 or our 29361 Gun with 29358 H…