Feature
Fits for acoustic guitar, classical guitar, electric guitar, ukulele.
Top outer diameter: 17mm (43/64 inch), base outer diameter: 10.4mm (13/32 inch), height: 9.2mm (23/64 inch), mounting screw hole diameter: 4.2mm (11/64 inch).
Made of zinc alloy, stable and durable.
Easy to install and convenient to use.
Package Included
2 pieces strap buttons, felt washers, and mounting screws