1、The tools are made of quality stainless steel, sturdy, anti-rust, anti-deformation and durable 2、The straight edge ruler has two sides with scales, 25.5'' for Fender guitars, 24.75'' for Gibson guitars. It can help you to check whether the flatness and straightness of fretboard 3、The string ruler has scales for string height, for ridge saddle slot depth and for nuts saddles 4、Lightweight and portable, easy to use and convenient to carry and store 5、Practical tool for guitar players, guitar makers and DIY, it will help you achieve better performance Features: The tools are made of quality stainless steel, sturdy, anti-rust, anti-deformation and durable. The straight edge ruler has two sides with scales, 25.5'' for Fender guitars, 24.75'' for Gibson guitars. It can help you to check whether the flatness and straightness of fretboard. The string ruler has scales for string height, for ridge saddle slot depth and for nuts saddles. Lightweight and portable, easy to use and convenient to carry and store. Practical tool for guitar players, guitar makers and DIY, it will help you achieve better performance. Specification: Material: Stainless steel Color: Shown as picture Size: Straight Edge Ruler-420 x 37 x 3.5mm / 16.53 x 1.46 x 0.14in String Measurement Ruler-89 x 51 x 6mm / 3.5 x 2 x 0.24in Weight: Approx. 442g Package List: 1 x Straight Edge Ruler 1 x String Measurement Ruler