Lost motion is eliminated and smooth octave-key action is ensured by rounding the octave rocker ends and Fluororesin-coating the receiving sleeves they contact.

Indented mother-of-pearl key touches are attractive, afford the fingertips a more natural fit and feel, and are less slippery than plastic touches when wet.

Designed to make minimal point contact with the body, the thumb hook enables the instrument to resonate more freely while the brass thumb rest allows for smoother response and improved tonal balance.

For the utmost in precision and reliability, pointed pivot screws ensure that center arms or hinge rods are an exact fit.

Airtight pads facilitate balanced, leak-free play while quality waterproofing extends pad service life.

Blued-steel needle springs are more elastic than the stainless-steel variety, offer faster action and render a better command of difficult passages.