Shubb is the name of a company that specialises in producing top-quality capo

Capo

A capo is a device used on the neck of a stringed instrument to shorten the playable length of the strings, hence raising the pitch. It is frequently used on guitars, mandolins, and banjos. G.B...

s for all kinds of stringed instruments. The company was formed in 1974 by Rick Shubb

Rick Shubb

Richard Shubb is best known as the inventor of the Shubb Capo, a very popular guitar and banjo accessory. His 1978 patent is cited by Sterner's Capo Museum as being one of the most significant improvements in the development of the capo...

 and Dave Coontz. Both are practising banjo

Banjo

In the 1830s Sweeney became the first white man to play the banjo on stage. His version of the instrument replaced the gourd with a drum-like sound box and included four full-length strings alongside a short fifth-string. There is no proof, however, that Sweeney invented either innovation. This new...

ists.

Capo Design

The Shubb Capo utilises an over-centre locking action, which is lever operated. Shubb Capos are available in variety of models to fit different type of guitars, banjo

Banjo

In the 1830s Sweeney became the first white man to play the banjo on stage. His version of the instrument replaced the gourd with a drum-like sound box and included four full-length strings alongside a short fifth-string. There is no proof, however, that Sweeney invented either innovation. This new...

s, mandolin

Mandolin

A mandolin is a musical instrument in the lute family . It descends from the mandore, a soprano member of the lute family. The mandolin soundboard comes in many shapes—but generally round or teardrop-shaped, sometimes with scrolls or other projections. A mandolin may have f-holes, or a single...

 and bouzouki

Bouzouki

The bouzouki , is a musical instrument with Greek origin in the lute family. A mainstay of modern Greek music, the front of the body is flat and is usually heavily inlaid with mother-of-pearl. The instrument is played with a plectrum and has a sharp metallic sound, reminiscent of a mandolin but...

. For example, there are Shubb Capos for Steel String Guitar which fits most acoustic and electric guitars; the Shubb Capos for Nylon Sting Guitar are designed for guitar with wide flat fretboard, etc.
Furthermore, each model is available in different styles, namely Original (nickel plated or plain, unplated brass) , Capo Noir (black chrome) and Deluxe (stainless steel with improved roller design on the lever) .