Features 1、Widely applied to folk guitar, classic guitar, electric guitar, bass and other string instruments. 2、Obtaining accurate action measurements for string height and distance, bridge saddle height, saddle slot depth, pickup polepiece height, fret slot depth and nut height. 3、Mainly adopting stainless steel, anti-rust and stable to use, not easy to damage. 4、Lightweight and pocket size, super portable and easy to carry. 5、Very practical and useful, favorite measuring tools for DIY luthiers, guitarists. Specification Features: Widely applied to folk guitar, classic guitar, electric guitar, bass and other string instruments. Obtaining accurate action measurements for string height and distance, bridge saddle height, saddle slot depth, pickup polepiece height, fret slot depth and nut height. Mainly adopting stainless steel, anti-rust and stable to use, not easy to damage. Lightweight and pocket size, super portable and easy to carry. Very practical and useful, favorite measuring tools for DIY luthiers, guitarists. Specification: Condition: 100% Brand New Material: Stainless Steel Color: Shown as pictures Size: Approx. 89 * 51mm / 3.5 * 2.0in Weight: Approx. 27g Packing List: 1 x String Action Ruler