Flamma are a fairly new builder, their pedals hit the market worldwide a year or two back. This has seven reverb modes and you can save a preset for each, so it's easy to go from sensible spring tones to enormous "I live in a cave now" pools of ambience. Stereo in and out too, yay.  It works great, you'll love it.

Model: Flamma FS02 Reverb
Made: China, recent model
Serial: NA
Type: reverb
Power Input: standard 9v DC centre-negative (supply not included)
Accessories: box and docs

Condition notes: used, no major marks. Tested and fully functional.
Overall: excellent condition (9/10)