You're looking for a small somewhat camouflaged SD case. Depending on time of day, there may be quite a bit of muggle traffic...or none at all. BYOP.
There's barely enough room for a small coin; we've launched this one with one rarin' to go.
You'll most likely need to use the geotool attached to the container to remove the cache from its resting spot. Please try to replace it as you found it.
Congrats to Julius169 on being the FTF!