Wilkinson 60s Style Single Coil Pickup ~ Middle Full Contact Hardware These rubbers are perfect for

These rubbers are perfect for erasing small scratches and removing dirt from your guitar's frets

The Screw Mount version requires you to drill a hole through your acoustic guitar's bridge

Hipshot Ibby FP 8 String Guitar Bridge

Here's a video from Hipshot showing exactly how the device is installed:

With Alnico V magnets

Wilkinson 60s Style Single Coil Pickup ~ Middle Full Contact Hardware These rubbers are perfect forA very accurate replica of a 60's style pickup. Staggered polepieces with chamfered Alnico V magnets. Chamfering the polepieces focuses the magnetic field giving good highs but still allowing some mids to come through to stop the pickup sounding thin. Middle pickup is reverse wound reverse polarity. Bridge pickup is slightly overwound for better balance.