This 2-1/4" Locking Rebar Snap Hook from Miller Safety (T8221) provides positioning assistance. The positioning assembly has two locking snap hooks with 3/4" (19mm) gate openings and one locking rebar hook with a 2-1/4" (57mm) gate opening. This assembly is for positioning assistance only; a lifeline or lanyard is still required for fall protection.
More details below...