D'Addario Accessories Guitar Capo – NS Tri Action - For 6-String Electric and Acoustic Guitars – Micrometer Tension Adjustment for Buzz-Free, In-Tune Performance - Single Hand Use – Integrated Pick Holder - SilverTUNED IN: Designed for use on 6 string electric and acoustic guitars, the micrometer tension adjustment on the silver Tri Action Capo ensures the proper force is being applied to the neck of the guitar for buzz free, in tune performance at any fret. TRI ACTION GEOMETRY: Tri Action geometry reduces the force required to open and close the capo and applies even tension regardless of neck profile. EASY TO OPERATE: The single hand, easy to operate Tri