Are you a guitar lover? Or does your friend like to play guitar? Then consider buying our products! Our product is a set of rulers specially designed for measuring guitar string pitch, which can meet the needs of professional and personal use. Features -Color:Black -Material: Stainless steel -Size:10.00X5.00X0.20cm/3.93X1.97X0.08in -This measurement tool can measure the flatness of guitar neck, string distance, etc. -Excellent and wearable Stainless steel material ensures their long serving life and durability. -Simple to use and convenient to carry, very practical and convenient for guitar lovers. -The different rulers can be matched together to use, the result will be more accurate. -Professional guitar instrument accessories, also an essential repairing tool set for guitar players. Package list: 1 x Guitar String Action Gauge