Only 6mm thick, the Krivo Humbucking Pickup for Resophonic Guitar is optimized tonally and aesthetically to suit all resonator instruments including squarenecks, single cones, tricones, and dobros. My proprietary Optimized Microphonics winding technique faithfully captures the sound of your particular instrument. The Krivo Resophonic pickup comes in an attractive nickel finish to match the classic appearance of metal-bodied resonator instruments. However, this pickup is also fantastic on wood-bodied instruments and a variety of wood finishes may be special ordered to suit your particular guitar. No preamp is necessary, just plug in to any guitar or acoustic amp, or via a direct-box straight into a P.A. system. The pickup mounts and removes effortlessly with included finish-safe putty.