Shubb C6B Dobro Guitar Capo Plain Brass

What Shubb has to say:

When the Shubb capo was first introduced more than 30 years ago guitarists throughout the world fell in love with it. They're still in love with it today. We've given it a few tweaks through the years, but its basic mechanical principle remains the same: a unique over-center locking mechanism that 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.

And the Shubb capo is BY FAR the best at not creating tuning problems. Its soft, resilient rubber is specially designed to work just like a fingertip, so it 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!

Not as shiny; a more subtle, satin-like finish. Sleek to the touch and to the eye, it has a modern yet timeless look. When we previewed our upgraded standard capos for some of our distributors, this one raised the most eyebrows.

Unlike other Dobro capos that attach only to the strings, the Shubb clamps solidly to the neck to provide great tone. It uses the same patented locking action of our Shubb guitar capo, and it aligns by touching the fret, not by eye, making it fast and accurate.

This is the best capo ever put on a resophonic guitar. 
It is NOT for use on Weissenborn style guitars with hollow necks, because their necks are too deep and too fragile.