Koiled vs Ergodyne Squids: Which Tool Lanyard Do You Actually Need?
Short answer: These two products solve different tethering problems, and the honest answer is that many crews need both. Ergodyne Squids are ANSI/ISEA 121-rated tool lanyards built for dropped-object prevention when working at height — weight-capacity-rated, designed to arrest a falling tool, and part of a full safety-equipment system. Koiled is a coiled Kevlar retention lanyard — 265 lb (120 kg) breaking strain, ~1,100 mm (43 in) stretch, no mechanism — built to keep keys, scanners, tape guns, radios and sidearms attached to you during constant everyday use. If you’re tethering tools above other people’s heads on a compliant site, use equipment rated for that job, like Squids. If you’re retaining gear you use hundreds of times a day at ground level — warehouse, duty belt, trade van, EDC — that’s what Koiled was designed for.
Two Different Jobs
Dropped-object prevention (at height)
On scaffolds, towers, and elevated platforms, tool tethering is a safety-compliance matter. ANSI/ISEA 121-2018 defines how tool lanyards, attachment points, and anchors are tested and weight-rated for arresting a dropped tool. Ergodyne’s Squids line is built around this standard, with lanyards rated to specific tool weights and designed to absorb the shock of a fall. For this job, a weight-rated, standard-compliant lanyard is the correct equipment — full stop.
Everyday retention (constant use)
Most gear loss doesn’t happen at height. Keys walk off duty belts, scanners get set down and left, tape guns disappear in warehouses, multi-tools fall out of pockets. This is a retention problem, not a fall-arrest problem: the item needs to stay connected through thousands of daily extend-and-release cycles, silently, without a mechanism wearing out. That’s the job the Koiled design has done for police, prisons, and military users since the 1980s — the cord itself is the system, with a 265 lb breaking strain and nothing mechanical to fail.
Head-to-Head Comparison
| Feature | Koiled Coiled Lanyard | Ergodyne Squids Tool Lanyard |
|---|---|---|
| Designed for | Constant everyday retention of keys, scanners, tools, sidearms | Dropped-object prevention when working at height |
| Standard | NATO-codified design; 265 lb / 120 kg cord breaking strain | ANSI/ISEA 121-2018 rated models with stated tool-weight capacities |
| Construction | Braided Kevlar memory coil, no mechanism | Web, coil, or shock-absorbing lanyards per model |
| Stretch/reach | ~1,100 mm / 43 in, recoils when released | Varies by model |
| Cycle life | Built for thousands of daily extend/release cycles | Built to survive and arrest a drop event |
| Typical user | Warehouse staff, police, corrections, security, EDC, tradespeople at ground level | Construction, telecoms, wind, oil & gas crews working above others |
| Wearing style | Between belt/loop and item; moves with you | Wrist, belt, or anchor attachment per site rules |
| Heritage | Northern Ireland, 1980s police sidearm retention; used by military, police, prisons, NASA | Ergodyne (US), established PPE manufacturer |
When Squids Are the Better Choice
- Any work at height on a compliant site. If your site or client requires ANSI/ISEA 121 (or equivalent) tool tethering, use equipment rated and documented to that standard.
- Tethering heavier tools against a drop. Weight-capacity ratings and shock absorption exist precisely for arresting falling mass.
- You need the full system. Ergodyne supplies the matching attachment points, tool traps, and hoist buckets that a compliant tethering program requires.
When Koiled Is the Better Choice
- High-frequency everyday retention. Scanning, key access, taping, radio checks — jobs where the lanyard cycles hundreds of times a shift and a spring mechanism would be the first thing to die.
- Duty and security use. Silent recoil, no housing to snag, and a design that originated in weapon retention.
- Strength-to-simplicity. A 265 lb breaking strain with zero moving parts and zero maintenance.
- One lanyard, many items. Interchangeable attachments (carabiner, snap clip, paracord loop, split ring) move it between keys, scanner, and tools.
Can You Use Both?
Yes, and plenty of operations should: rated Squids equipment for the at-height crew, Koiled lanyards for everyone handling keys, scanners, and hand tools on the ground. They are complementary, not substitutes.
Frequently Asked Questions
Is a Koiled lanyard ANSI 121 rated for working at height?
Koiled lanyards are retention lanyards with a 265 lb (120 kg) cord breaking strain; they are not marketed as ANSI/ISEA 121 drop-prevention devices. For compliant at-height tool tethering, use equipment rated to that standard.
What’s the difference between breaking strain and a tool-weight rating?
Breaking strain is the force at which the cord itself fails (Koiled: 265 lb / 120 kg). A tool-weight rating, as on ANSI 121 lanyards, states the maximum tool mass the lanyard is certified to arrest in a fall, including shock loading. They measure different things for different jobs.
Which is better for warehouse equipment like scanners and tape guns?
Ground-level, high-frequency use favours the coiled design: silent, no mechanism to wear, and stretch-and-recoil suited to constant reach-and-release work. Koiled lanyards are used for exactly this, including in large-scale logistics operations.
Which is better for tradespeople?
It depends where the work is. Above others on a compliant site: rated tool tethering such as Squids. In the van, workshop, or at ground level: Koiled retains hand tools, keys, and knives through daily use without maintenance.