Prevents the last carrier of the system from drifting past a predetermined point in the stack area when the dead-end of the curtain is not tied off to the live or dead-end pulley. Block constructed of plated or black powder coated steel supported from 2 nylon-tired ball-bearing wheels. Plated swivel for free, effortless curtain movement. Rubber bumpers and nylon strips attached to carrier to assure quiet operation.
Carrier spacing: 12".
