Specification Brand : JINGFENG BulletPoint1 : Fretboard measured in radians, and radians to adjust the strings piano code. BulletPoint2 : Fast, accurate nut bridge saddle and string adjustment. BulletPoint3 : Obtain accurate measurements of your instrument's fretboard radius,saddle radius nut radius from either the upper or the bottom radius surface. BulletPoint4 : These come in the most popular fingerboard radius and make it easy to measure the radius from either above or below the strings. BulletPoint5 : Stainless steel material, smooth surface and rounded off edge, easy using and very convenient. Color : Silver ItemName : JINGFENG 9pcs Stainless Steel Understring Radius Gauge for Guitar Bass Setup Luthier Tool ItemPackageDimensions_Height : 2 centimeters ItemPackageDimensions_Length : 10 centimeters ItemPackageDimensions_Width : 8 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : radius-gauges Manufacturer : JINGFENG Material : Stainless Steel ModelName : Sanpylon4586tezc ModelNumber : CDQLgk5mc0fi26 NumberOfItems : 1 PartNumber : JINGFENGI4763OXUS ProductDescription : This is a set of 9 pcs understring radius gauge set, includes 7.25", 9.5", 10", 12", 14", 15", 16", 17" and 20" radius, you can choose according to your demands. Fast, accurate nut bridge saddle and string adjustment. Suitable for electric guitar, wood guitar, acoustic guitar. You can have a try. Specifications: Name: Understring Radius Gauge Material: stainless steel Color: silver Item weight: 42g / 1.48ounce Package size: 80 * 80 * 20mm / 3.15 * 3.15 * 0.79in Package weight: 42g / 1.48ounce Package list: 1 * Understring Radius Gauge Set