The clips have rubberized pads to help protect the guitar headstock.

Extremely responsive tuner that won't scratch the headstock on your guitar

An awesome headstock tuner, and it comes in attractive colors

Excellent portable and accurate headstock tuner

Overall, a solid headstock tuner at a terrific price.

it’s right there on headstock so much easier

When I'm tuning the A string, the display will register as "E," but the blue bars and arrows work fine.

I compared this tuner with my other tuner clips. as well as with my TC Polytune 2, and it is as accurate

You begin tightening the string, and as soon as you reach pitch, wham, the "D" now has a blue bar above it as well, and a blue arrow appears on either side of it (see the Amazon photo).The unit is very simple, having just an on-off button and a button on either side of it to calibrate the pitch above or below A 440.

n’t find it very useful