Encased Channel Magnet Material Ceramic Max Pull 25 lb Thickness 0.5 in Overall Length 2 45/64 in Overall Width 1 5/64 in Casing Material Nickel Plating Hole Dia 3/16 in Stability Temp 32 Degrees to 180 Degrees F Features Center to Center Spacing On The Mounting Holes is 2-5/16 in