Pacific Bay Graphite Gimbals are made of durable black graphite/nylon compound that is up to 75% lighter than brass gimbals. Pac Bay Graphite Gimbals provide a secure lock in a fighting belt or in a rod holder. The inside of the Pac Bay Graphite Gimbals are ribbed for firmer bonding with the glue. Pacific Bay butt caps can be used to cover the Pacific Bay Graphite Gimbals when they a not needed.