C7b - Partial capo for steel-string guitars (acoustic and E-guitars) Finish/Material: plain brass Clamps 3 inside strings The C7b skips the outside string (E6) and covers the next three ((A/D/G), either 2-3-4 or 5-4-3 (emulating DADGAD tuning). Attention: partial capoing is not the same as open tuning.Introduced in 1980, the original Shubb Capo is the choice for musicians worldwide. A patented locking action provides an unrivalled combination of power, speed, accuracy and ease of use. One smooth flip of the lever locks it securely in place and removes it just as quickly. With the Shubb capo are no tuning problems. Its soft, resilient rubber doesn't bend the strings over the frets. Its closing action is just like your hand, so it doesn't pull the string off center. As a result, no re-tuning is necessary.