Please refer to our FAQ page if you have further questions.
1. The brass version is raw brass, and as such it can oxidize. Some parts may show some discoloration due to this. To remedy, simply use a 3M scotch pad, or a fine steel wool to touch up the button surface prior to assembly.
2. It is recommended that the edges of the 3 "legs" on each button are chamfered or rounded by sanding the sharp edges. This is not required but can help ensure the button actuate freely and do not ever bind.