Metal Capo for Acoustic Electric Guitar

Easily repositionable with one hand,this capo model fits wonderfully on the neck of your guitar,regardless of the chosen fret. It has small soft pads inside the clamp,which means that:1. it is not likely to damage your neck and 2. it applies the right tension on the strings. It is reinforced in this mission by the spring that allows a fixation without buzzing. Made of zinc alloy,it measures about 8 cm long and 9.5 cm high. Do you prefer the black or silver version?