Schaller BM Light 4L BC

These are a great replacment for SX basses, they are super lightweight really make a difference to the balance of the bass.

the only downside is that there is no installation guide or tips and they don't use screws to secure them to the bass. the tunners lock into the bass using pegs with u have to drill the holes for. i would strongly suggest making a template and testing on a scrap piece of wood to make sure u get a strait and flush alignment.