The cache container is about the size of your pinky, shiny as a newly minted nickel and if windy, will blow with the rest of them. On a bright and sunny day, the rays of the sun may give this caches location away due to reflection.
Careful you don't get busted by the fellas in the carpet shop as the counter is at the front of this store. Their carpet vans are also onsite and crew members will be in plain sight.
Good luck and enjoy the fun!