The G7th Newport 12 String capo is specifically designed for 12 string acoustic and electric* guitars and combines a flip-lever action, a low-profile shape that doesn't get in the way of your fretting hand and the patented Compensated String Pad.
The Compensated String Pad allows all 12 strings to fret at the same time and under the same tension, dramatically reducing tuning problems whilst fretting all 12 strings securely and accurately.