PinMart United States Presidential Seal 1" Lapel Pin Available as a single item or bulk packed. Select your quantity above. 5 Pack of Lapel Pins United States Presidential Seal Pin. Die Struck from jewelers metal, enamel color filled, gold plated and epoxy coated. The Seal of the President of the United States is used to mark correspondence from the President to the Congress. This is the symbol of the Presidency. SIZE: 1" Each pin comes with a clutch back and is individually poly bagged.