Cerakote coated Semi-Custom Edc Knuckle Dusters Swampy for men and women. Small Keychains for sale can also be used as edc bottle openers. Cerakote is an American high-tech thin-film ceramic-based coating. It provides durability, high aesthetic characteristics, resistance to corrosion and wear. Most popular in the USA. In this Product category you can buy brass knuckles only. Replaceable Inlay is not included and is sold separately.