Measures 1-7/16" Wide x 3/4” Tall Chain Measures: 2-3/8" Long Our pins are die struck from jewelers metal, soft enamel color filled, and epoxy coated. Pin fastens with what is known as a butterfly clutch which is one of the most popular modern methods of attaching pins, also known as a military clutch. The back of the pin has a small prong attached and when the butterfly clutch is squeezed and pulled up from the prong the pin is released from the clutch Additional Details ------------------------------ Product description: Measures 1-7/16" Wide x 3/4” Tall Chain Measures: 2-3/8" Long Our pins are die struck from jewelers metal, soft enamel color filled, and epoxy coated. Pin fastens with what is known as a butterfly clutch which is one of the most popular modern methods of attaching pins, also known as a military clutch. The back of the pin has a small prong attached and when the butterfly clutch is squeezed and pulled up from the prong the pin is released from the clutch