Recessed custom logo octagon - Gold Plated High Quality Cloisonne, Hard Enamel with Enamel Coating - The high luster and durability of Cloisonne, is an ancient art that requires meticulous hand-crafted detailing. Each insignia is hand-filled with colored Cloisonne, pasted and then kiln-fired at very high temperatures. After firing, each octagon is then hand-polished and plated . Finally, your pin is enamel coated to protect etching and printing detail. Octagons can be used to customize the tactical knife, handcuff key, tie bars, tie tacks, and numerous uniform accessories.