Skreddy make terrific stuff. This is terrific. It's an overdrive that's got a heap of sizzle and snap on tap, but with a tasty sweetness and very amp-like rich response. It's not too far from a Klon-style drive, but with a more aggressive high end and more gain range. 

Model: Skreddy Pedals Screw Driver 
Made: USA, recent model
Type: mid gain overdrive
Power: standard 9v supply or battery (not included), 2mA draw approx
Switching: true bypass
Equivalent new street price (approx): n/a
Mods: velcro attached
Accessories: no box or manual
Condition notes: used, few minor marks, good condition