The G7th 12 String capo is a traditional yoke-style capo made from hand-polished stainless steel, fitted with ART^® for maximum tuning stability with the minimum tension required, and a Compensated String Pad^TM which takes into account the different gauges between the bass and octave strings, compensating for them with ridges in the rubber over the fingerboard, meaning all 12 strings are fretted at the SAME TIME and under the SAME TENSION, so you won't pull any out of tune.