Eclipse Magnetics M17007SKM Alnico Bridge Magnet, 3/4" Length x 1-1/8" Width x 3/4" Thickness Alnico Bridge Grade 5 material, painted Red with a maximum temperature of 550 degrees C Length, width and thickness tolerances of +/-0.045" Come keepered (non-magnetic metal plate) to reduce damage 3/4-inch length, 1-1/8-inch width, 3/4-inch thickness, 1-1/16-inch width across the poles, 9/16-inch gap between poles and 3/16-inch mounting hole size Maximum pull of 13 pounds Alnico Bridge Grade 5 material, painted Red with a maximum temperature of 550 degrees C Come keepered (non-magnetic metal plate) to reduce damage 3/4-inch length, 1-1/8-inch width, 3/4-inch thickness, 1-1/16-inch width across the poles, 9/16-inch gap between poles and 3/16-inch mounting hole size Maximum pull of 13 pounds