1. ACCURATE MEASUREMENT Includes 1 x guitar neck measuring ruler, 1 string ruler, and a fiber wipe cloth (20 x 20 cm). Provides precise measurements for guitar, bass, mandolin, banjo, and more. 2. Stable and Durable Guitar neck notched straight ruler made of rustproof stainless steel. Dual scale design, suitable for most electric guitars, especially (75 inches) and (25.5 inches). 3. MULTIPURPOSE Plastic ruler doublesided with fraction, decimal, and metric conversion chart. Measures string height, saddle height, saddle slot depth, fret slot depth, and nut height. 4. Neck straightness test: The notched string measuring ruler is designed to check the straightness of the guitar neck, fretboard, and frets. The ruler measures nut, string, bridge, pickup rod, saddle height, saddle slot, and fret slot depths. 5. EXTRA CLEANING CLOTH Equipped with a 20x20cm fiber wipe for easy cleaning of the stainless steel ruler.