Amazon.com: ToneRite 3G Guitar | Accelerate Your Instruments' Play-In Process | Improve Your Instruments Resonance, Balance, and Range : Musical Instruments
Review: ToneRite Play-In Device for Acoustic Guitars | Guitar World
Martin D-15M StreetMaster 15 Series w Case and TONERITE AGING! 3lbs 11 – Melody Music Shop LLC