1978 Musicmaster Bass - Black White Black Precision Bass Blacktop These tuners are self-locking -

These tuners are self-locking - the string is clamped into place simply by tuning to pitch

This pickguard is made to fit the Fender 5 String American Professional Precision Bass Made from 3 ply parchment / black / parchment (off-white) plastic material

This stability is further improved upon with Gotoh's traditional locking posts - simply turn the wheel at the back of the tuner to clamp the string into place

The surface has a matte finish to replicate the wear from many years of use

Two Mounting hole locations from side edges = 5/16 inches

1978 Musicmaster Bass - Black White Black Precision Bass Blacktop These tuners are self-locking -Please note that this pickguard will only fit genuine Fender Musicmaster Bass instruments, specifically made in the year 1978. Made from 3 ply shiny black white black plastic material, 2. 28mm thick. With 45 degree bevelled edge.