Search at your own risk. If you are busted while searching and try to implicate me, I will say I was framed. Coincidentally, my beautiful, talented, better half, Tammy (Bangalee) works in the frame shop at the artsy establishment at the rear of which the cache is hidden. Maybe go in and say hello after you've made the grab (if they're open and you haven't been busted).
You are looking for a small black bison tube. Watch your shins. ;)