<https://www.jlsmithco.com/product/trombone-playing-slide-buff-7-8-5-16-27/#product>
<http://schema.org/description>
"If you must hone the bore, you can buff the inside for that original factory finish, using your bench motor or hand drill to spin the buff. Wire loop handle with nylon bristles."
<https://www.jlsmithco.com/product/trombone-playing-slide-buff-7-8-5-16-27/>