Gotoh RG15/RG30 String retainer C

I was expecting them to work, but I was surprised at the improvement in tuning stability. I was really able to give the tremolo bar an absurd amount of abuse and the strings were perfectly in tune. Small investment, big payoff. Easy to install if you have existing holes. Drilling a new hole is not particularly difficult, but drilling into a clean headstock requires a threshold of confidence.

just a small observation - it's also possible to stack two cylinders to make one tall string tree. On my guitar (G&L ASAT) the normal height sting tree seemed too short, while the stacked tree was just right.

These are perfect for upgrading the cheap traditional wing retainers on "S-Style" guitars with vibrato/tremolo bars to reduce the friction. They are not actual rollers, as are some of the more expensive ones, but they are smooth and rounded enough where it should not make any difference. Screws are just the right length.

This was a good upgrade to my Harley Benton ST-62. The original string retainers were a bit iffy and scratchy, but this is an inexpensive replacement that is of much better quality and is a drop-in (or rather screw-in) replacement.

Nice upgrade for the standard Squier string trees

I swapped these on my '98 USA Strat for the bulky Göldo roller stringtrees. Look more elegant and are so well made that there's no noticeable friction to be detected. Together with a Tusq nut they provide excellent tuning stability on my standard trem. Also put them on my Tele. Be aware that you might have to enlarge the mounting holes in your headstock a little.

A1, all good. Excellent machine heads and competitive price