FRINE Fret Polish Kit, Revolutionary Petroleum-Free Formula, Designed To Clean And Polish All Frets Safely And Quickly, 30ml, 3 Fingerboard Protectors With Grip Handle Keeps Them Out Of The Way And Curved Angle Contours designed for all fingerboards, one of each for all fret slot sizes: small, medium and jumbo, microfiber chamois cloth specially designed to work with our 8” x 6” FRINE fret polish and machine washable , safe for all metal frets.