Chrome. Aluminum. OEM reproduction. Stock replacement for 2016 Touring, Trike and 2015 FLHTCUL, FLHTK models. Will fit 07-15 Touring Trikes as a custom ‘narrow profile’ primary cover where it will provide a straighter leg to ground angle for easier maneuvering of the bike. Note: 07-15 Touring, Trikes require, a slightly larger, ‘narrow profile’ style derby covers, like 577077 (chrome) and 577078 (black). These must be ordered separately.