One of the most popular overdrive pedals in the world, the Fulltone OCD pedal is well known for enhancing the natural tones of your guitar and amp while adding a healthy dose of classic grit. The Fulltone OCD began an era of boutique overdrive pedal building, and is an inexpensive addition to any pedalboard. For a slight wicked sparkle or as extra muscle to a stacked chain, the Fulltone OCD is a must-have.