John Pearse Brass Bridge Pins: Seven (1 extra) beautiful slotted brass pins, including the endpin. Machined from the Finest Bell Brass, then Each is Crowned with a Genuine Parisian Eye, Hand-set in Ebonite & Pearl!! Enthroned in a solid block of Indian Rosewood, in a protective plastic case containing a Vapor-Tab designed to keep them sparking-workshop-new until you install them on your guitar to experience the wonderful difference that a Bell Brass Bridge Pin and End Pin combination can make! Sustain is the name of the game! Brittle-bronze, sometimes called by it's German name, ''glocken-messing'' (bell-bronze) is an extremely hard and very dense alloy. Because of it's composition, it is able to effectively store any energy that is transmitted to it, which is why--for centuries--it has been used as a material for the manufacture of bells. Very classy. Add sustain and style to your guitar! $36.99