At first glance, the heavy black steel tube looks like something that might have broken off a machine. It is hollow, unusually thick, and fitted with two large metal loops welded to opposite sides. With no buttons, moving parts, markings, or obvious mounting points, its purpose can be surprisingly difficult to guess.
The biggest clue is actually those two loops. They are positioned so a person can grip the object securely with both hands while the long cylindrical section remains between them. Its heavy construction is intentional because the weight