We use 0.04" thick brass and buff to a shine. Brass parts may or may not fit perfectly on your guitar and may require some fitting modifications for your guitar. See product details for dimensions. Please allow 2-3 days before parts ship. Each part includes brass Phillips head screws to secure the brass part to the guitar body. Brass prices are for parts only, and do not include installation. If you would like to add brass to your existing order, please contact us.