Hoxfly Stainless Steel Guitar Neck Notched,Guitar Ruler,Straight Edge Luthiers Tool Notched Ruler,Guitar Straight Tool,for Most Fretboards

【Excellent Quality】Made of durable stainless steel material. The guitar notch straight edge tool is durable enough for your long time use. 【Dual Scale Design】Dual scale design works well with most guitars. Wonderful for checking guitar neck straightness and fret and fingerboard flatness. 【Notched Straight Edge Design】Featuring notched straight edge design that makes it convenient to use the tool without fret interference. 【Practical Accessory】Works well with most guitars, especially electric guitars, ideal tool for checking straightness and flatness of fretboard and frets. This is a necessary operation before starting a performance. 【Application】The fretboard tool is great for checking guitar neck straightness and flatness of board and frets.