A yo-yo is a common nickname for a self-retracting lifeline, a fall protection device that extends and retracts with the worker and locks during a fall.
A widely used jobsite nickname for a self-retracting lifeline (SRL) or self-retracting device (SRD) — a fall protection connector housing a line or webbing that pays out and retracts as the worker moves, keeping slack to a minimum. If a fall occurs, a braking mechanism locks the line, much like a seat belt, limiting free fall distance.
A worker on an elevated mezzanine connects to an overhead anchor with a yo-yo, allowing them to move freely around their work area while the device keeps the line taut and ready to arrest a fall.
Because they lock quickly and keep slack out of the line, SRLs generally reduce free fall and total fall clearance distance compared with a standard 6-foot shock-absorbing lanyard, which matters when working at lower heights.
No, when an SRL is anchored at foot level and the line could contact an edge during a fall, a device specifically rated for leading-edge use is required, since a standard line could be cut or damaged.
Workers should check that the line retracts smoothly and locks firmly when pulled sharply, inspect the housing, line, and connectors for damage, and confirm that the fall indicator has not been activated.
Part of SafetyIQ's EHS glossary: plain-English definitions of workplace health and safety terms.
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