Small Purple Bison Tube Cache

Here is a Small Purple Bison Tube Cache , the loop at the top is a little rusty, but like all bison tubes, they are hardy and last for a long time. Can be used in many ways, recently I've heard of someone putting astroturf grass in the tube loop and planting it like some grass in a lawn, sounds like a 4 or 5 difficulty. This one was more unceremoniously under a rock, but it works!

Little beat up but still working