Take the classic Muff fuzz: good start. Add some handy EQ controls: heck yeah. Add a top boost: aw crap, that's horrendous. Achievement unlocked. 

Model: Electro-Harmonix Metal Muff w/ Top Boost
Made: USA, recent model
Serial: obscured
Type: fuzz
Power: standard 9v DC negative power supply (not included)
Equivalent New Street Price (Approx): N/A
Mods: none
Accessories: box and docs

Condition Notes: used, no major marks. Tested and fully functional.
Overall: very good condition (8/10)