Brass Scales: Brass is a beautiful and durable material that will only get better with age. As it is used, the brass will develop a natural patina that will give each tool its own unique look. The patina is a result of the oxidation of the brass, and it is a completely natural process. There is no need to worry about the patina damaging the tool. Included Items: Each set of brass scales includes the following: 4 scales (2 per handle) 8 new screws with threadlock pre-applied A spare 2mm allen wrench/hex key Installation: Installing the brass scales is a simple process that can be done in just a few minutes. First, remove the old screws from the tool. Next, align the new scales to the tool and tighten the new screws screws. Torque to your desired tension of the internal tools.