Why overdrive, when you can Super Overdrive? This principle can be applied to many areas of life.  

Model: Boss SD-1 Super Overdrive
Made: Taiwan, 2012 (serial L2C5629)
Type: overdrive
Power: Boss 9v DC negative supply or 9V battery (not included)
Switching: buffered bypass
Equivalent new street price (approx): $89aud
Mods: none
Accessories: original box and manual
Condition notes: used, no major marks, fully functional. Overall: very good condition