1、QUICK ADJUSTMENT: This guitar multi tool spanner is the ideal tool for guitar and bass and so on. Designed for quick adjustment of instrument parts. 2、USE PROCESS: Tighten one end and relax the other by this guitar bass spanner, tightening almost all the nuts, jacks, switches, collars, wheels, etc. on the guitar. 3、CLEARANCE FORMING: One end of the multi tool spanner can be mounted under a volume or toning knob to form a clearance in the body or head of the guitar. 4、LIGHTWEIGHT: Guitar multi tool spanner wrench is light in overall weight and simple for carrying when you have maintenance need. 5、BRONZE MATERIAL: The guitar multi tool spanner wrench is made of bronze material and with bronze color, practical and beautiful. Item Type: Guitar Bass Repair Wrench Material: Bronze Size: Approx. 10cm / 4in 1 x Guitar Multi Tool Spanner