Product Features Stainless Steel Tools Kit: Includes a guitar radius gauge and feeler gauge, two essential tools in one set for guitar maintenance. 32-Blade Feeler Gauge: Measures from 0.0015in / 0.04mm to 0.035in / 0.88mm. Features a thumb screw for easy blade removal and protection. 9 Radius Gauges: A set of nine stainless steel gauges, covering the following radii: 7.25″, 9.5″, 10″, 12″, 14″, 15″, 16″, 17″, and 20″. Accurate Kit: Designed for universal use in repairing and maintaining guitars. Compatible with a wide range of guitars. Wide Applications: Suitable for acoustic, electric, folk guitars, and electric basses. Specifications Color: Silver Material: Stainless Steel Package Size: 11 x 8 x 1 cm / 4.33 x 3.15 x 0.39 in Package Weight: 42 g / 1.48 oz Package List 9 x Radius Gauge 1 x Feeler Gauge (32 pieces)