Golfsmith Black Ferrule .370 14.2 O.D. Pack of a Dozen | Wiki & Review | Everipedia

Ferrules are required on metal clubheads with flat-topped (non-radiused) hosels to provide the taper and enhance the appearance of the club. Many Golfsmith ferrules have outside diameters that closely match those of our clubhead hosels and thus require little or no turning. Features: [+]