Musiclily Pro 4mm Steel Top Mount Guitar String Black of Bushings, (Set 6)

A top-mounted string ferrule that fits some electric guitars and is used in place of the tailpiece on string-through-body guitars. Requires mounting holes with a height of 8.2mm, an outer diameter of 5.5mm, an inner diameter of 2.5mm, and a diameter of 4mm. Please check the size image before purchasing. Made of steel, it is stable and durable. It fixes the strings, makes them vibrate more effectively, improves resonance, increases delay, and brings stronger tone. Package Contents: 6pcs Tring Bush