Say goodbye to loose output jacks forever! The Retrofit features a unique threaded cup that screws directly onto a Switchcraft output jack. Designed to fit into the 7/8” -diameter hole standard on Telecaster bodies, the Retrofit is an easy upgrade and offers a fail-safe connection. Twin Town Guitars does guitar repairs on instruments, electronics, and do Plek work! • MFSKU AP-5270-B01 • UPC 645208080945