HA-1582-2.. Homart Heart Shaped Pad Lock & Key in Black. Very Large Cast Iron Lock is 4.5 inches wide x 1.25 inches thick x 5.5 inches tall. Lock arm is .75 inches thick Key is 1 x 3.5 inches. Lock weighs over 2 lbs.. Very impressive scale. For that special Valentine who has the key to your heart.