https://www.stewmac.com/video-and-ideas/tips-du-jour/mailbag-episode26-tonerite/
ToneRite - Luthier Tips du Jour Mailbag - StewMac
Luthier and Instructor Robert O'Brien talks with the folks from ToneRite about their product that helps accelerate the break in process for an instrument.
du jourtoneriteluthiertipsmailbag