Guitar, smartphone, clip, smartphone holder, YouTube - convenient for guitar chord websites. Brand new, unused. The clip part is made of metal and is durable. The clamping part has a silicone pad, so it won't scratch the guitar head. If you're worried, please put something in between. It opens up to 5 cm. The smartphone clamping part can extend from 5.8 cm to 10.2 cm. It can hold larger smartphones. The head part rotates 360 degrees. It can be attached vertically or horizontally, which is convenient. Besides musical instruments, it can also be used on tables and for various other purposes. I am selling it on Yahoo Auctions. Thank you.