The Grover Ultra Capo features the "World's first" offset design which allows more room for the thumb on the back of the neck. Easy on… easy off… easy to position, the Ultra Capo also features a unique, non-glare matte finish for a soft, no-slip grip. Made of lightweight aluminum, The Ultra Capo has the quality you can expect from Grover and the famous limited lifetime warranty. (Please note: rubber parts may naturally wear out over time and are not part of our lifeftime warranty.)