[2] Shubb wanted to create a capo that would not make his instrument go out of tune, which has resulted in ongoing efforts to refine his invention.

"[9] Shubb capos are available in variety of models to fit different types of guitars, banjos, dobros, and ukuleles.

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).

[3][12] The Shubb capo was introduced at the 1980 NAMM Show, and became a favorite on the Usenet acoustic guitar newsgroup.

[13] An advantage with using this type of capo is that it does not change the intonation in a way that makes the instrument difficult to tune, as it "mimics the grip of a human hand.