Thank you for viewing this product from among many others. The item I am offering this time is the Super Overdrive, SD1, a classic BOSS model. It's a model that Mr. Takahiro Matsumoto of B'z also used for a time. According to a search online, it was made in 1999. I kept it as a spare, but I'm selling it because I haven't used it much. The item is the main unit only. - Model Name: SD-1 - Brand: BOSS - Color: Yellow - Type: Overdrive - Controls: LEVEL, DRIVE, OUTPUT Manufacturer: BOSS #BOSS #sd1 #EffectPedal #Overdrive #bz #tak #TakahiroMatsumoto