Application:Handy when you want to check a fingerboard without taking the strings off.
Material: Carbon Steel, durable and stylish.
Design:The set includes closely-spaced string notches for use near the nut (narrow), and wider spacing for use near the body (wide).
Radius Specification:The set includes closely-spaced string notches for use near the nut (narrow), and wider spacing for use near the body (wide) The radius gauges comes in all popular fingerboard radii. (7.25", 9.5", 10", 12", 14", 15", 16" and 20").
Package include:2 x Wide Guitar Notched Radius Gauges,2 x Narrow Guitar Notched Radius Gauges.