A capo that lasts! Slightly curved to fit acoustic and electric guitars perfectly. Made from high-quality aluminum alloy and using a spring imported from Japan (high quality). It's easy to change keys with this clamp-style capo. It's easy to use and fun to play with. Suitable to be used as acoustic guitar capo, electric guitar capo, banjo capo, and ukulele capo. Quality materials, such as the silicone grip pad and quality spring, as well as the correct curve of the capo's pressure pad, ensure that the pressure on the strings is correct and will not cause the centre strings to be "pressed" out of tune.