Have a fingered 'C' Extension?   Considering getting one?

Anzellotti Bass Capos

The ultimate solution for 'C' Extension chromatic latches or gates!

Anzellotti Bass Capos


With thousands of sets sold, installations found on basses from American high schools to dozens of major orchestras worldwide, and orders always on the rise, Bass Capos have shown their mettle. Please enjoy my site!

Standard Capos:

This is what I have been doing for 20 years. A strip of leather is wrapped tightly around a brass finger. It works well and is quite durable.

Ebony Capos:

Capitulating to customer demand I introduced my Ebony Fingers. After trying them out myself, I can see why some players prefer a larger and more rounded finger.

  • Easy to install
  • Easy to adjust
  • Operation is Quick, Secure, Precise, and Silent
  • Fingering on extension not impaired

Ebony fingers!

Some players either prefer a wood finger for aesthetic reasons, or they are simply more comfortable with a larger surface to grab.

These can also be done in other woods. For example, It is a nice touch to match the color to your scroll varnish!

Photos credit to Michael Griffin, creator of this bass and the extension.

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Double bass 'C' Extension Capos, also known as chromatic latches, closers, or gates, attach to the fingered extension, giving the player added capability when playing the extended notes. By stopping a note on the extension with the Capo, the note temporarily becomes effectively an open string, and need not be stopped with a finger. This reduces much of the technical disadvantage associated with fingered extensions. Anzellotti Bass Capos offer an advantage over other 'C' extension closures in that they are easy to install and adjust compared to handmade latches, and they were carefully designed and engineered to maximize performance.