The best sounding and most rugged piezo disc harness of this specification on the market, or your money back.
Hand wired jack and piezo disc pickup. Built by Treadstone Guitars in the UK. No soldering required. Primarily used for Cigar Box Guitars, but I’ve fitted them to ukuleles, regular acoustic guitars and stomp boxes. I use these myself on my piezo based Cigar Box Guitars (Treadstone Guitars).
This is a no-frills, yet sturdy harness using high quality components. The wires at approximately 185mm are long enough for most guitars and pretty much any stomp-box.
The piezo itself is sensitive, and is 27mm in diameter. A genuine Neutrik jack socket is also used!