These pins are 1.75 in height, with bright & shining black dyed nickel plating. They are soft enamel, & a beautiful addition to any pin lovers collection! The orange magically color shifts from orange to yellow with heat. (About 95F needed, so a good rubbing usually does the trick!) You are guaranteed standard pin quality! A NOTE FOR INTERNATIONAL ORDERS!: I realize the shipping for pins can add up to be almost as much as the value of the pin, so for all orders placed outside of the U.S. I will give you one RANDOM pin free with your purchase to make up the cost of the shipping! Ram Skull Color Changing Thermal Enamel Pin