The Beam trolley constitutes a safe means of anchorage to an overhead “I” beam with a flange of 2 5⁄16 to 81 1⁄16 in. (58 to 220 mm). Mounted on ball bearing wheels, the push beam trolley will smoothly follow the worker when he moves laterally thus keeping his anchorage point straight over his head and minimizing the risk of pendulum fall.