DetailsThese replacement parts were modeled after the Mark VI right hand Thumb Hook. The components will fit vintage Selmer saxophones from early Mark VI through S-80 Series II. Please note the Tear Drop and Screw will not work with Selmer Series III saxophones. In addition, they can be used as replacement parts on other brands of Saxophones that are in the Selmer Style. These will also work with the MusicMedic.com Gold Plated Thumb Hook.