Made in Italy, to fit in B&C violin tailpieces. Other tailpieces may require some modification for these to work.
The nut installs from the bottom of the hole, and is held in place by the friction of the rubber O-rings.

• Includes the lever, screw, and nut with O-rings
• Available for ball end or loop end strings.

• Carbon fiber lever only
• Designed for ball end or loop end strings