Akface 9 Packs Guitar Tuner Understring Radius Gauge, Bridge Saddle Adjustments Rulers for Electric Bass, Acoustic Guitar, Violin, Folding Stand Tuner for All Instruments Ukulele & Chromati

I should have looked at the pictures more carefully. What I wanted was a radius gauge that you can hold under the strings to set their individual height. That would mean that the *top* of the radius gauge should be shaped per the radius. Instead, these gauges are radiused on the *bottom.* That means you can lay them against the fingerboard or bridge, so they're not useless. But if you have any rectangular radius gauges with a different gauge on each side, you already have that capability.I'll look more carefully next time. I docked them a star for that, and another star for calling them "understring," which they're not. They're high quality for what they do, but the description is not true.Update: To their credit, they contacted me after my review and offered a price adjustment for the misunderstanding regarding functionality. I passed on the adjustment because I want my comments to stand, but I did put a star back for their customer responsiveness.

Very helpful in setting up your guitar properly and very well made. I am told that I need to add at least 8 more words. So there you go.

The markings are a bit faint but once you find the one you need the rest will get stored away for your other guitars. Overall it does what it's supposed to do.

They're a little thicker than I hoped for - they're hard to fit under strings when at full tension, but they do the job at a good price.

Very handy for guitar set ups.

The set I received was for over string measurement, not under string measurement.

right tool for the right job thank you!!!!!

They work, what more can I say. Price is right for what it is.