Metal bulldog rustic raw steel bottle opener. Size: 4" x 3.5". Each bottle opener is thoughtfully designed and created from scratch by us, husband and wife, Brandon and Erin Spangler, in our rural north Georgia barn studio. Our bottle opener are made out of 14 gauge hot-rolled industrial A-36 steel. Which is covered with a thin layer of black oxide (magnetite) which is responsible for its dark gray/bluish tint.