Firefly F-21 rotating through a full turn, exploded view to front

Firefly F-21 · Emergency descent device

When the stairs are gone

There is still a way down.

One speed. Any weight.

A 30 kg child and a 125 kg adult descend at the same controlled rate. Nothing to set, nothing to adjust.

It brakes like a car.

Friction pads on aviation-grade aluminium. No motor, no battery, no electronics to fail.

Built for 30 to 125 kg.

Six years of engineering. Tested to EN 341:2011 Class A. Ships in two working days.

01 / 04

21:14 · Alarm active · 21st floor

Emergencies don't wait.

Four ways out. All of them gone.

  • STAIRWELLInaccessible
  • ELEVATORDisabled
  • EXITBlocked
  • HALLWAYSmoke-filled
STAIRWELLELEVATOREXITHALLWAYBALCONY21F · 63 M ABOVE GROUND

Choose your length

Your floor. Your rope.

Most floors are about 3.5 metres. Scroll to see which length reaches yours.

0

m · of 3.5 m

reaches 1F

LENGTHS AVAILABLE UP TO 90 MGROUND5F · 17.5 M10F · 35 M15F · 52.5 M20F · 70 M25F · 87.5 M3.5 M · 1F10 M · 2F15 M · 4F20 M · 5F25 M · 7F30 M · 8F35 M · 10F40 M · 11F45 M · 12F50 M · 14F55 M · 15F60 M · 17F65 M · 18F70 M · 20F75 M · 21F80 M · 22F90 M · 25F
Firefly F-21 — view 1 of 4
Firefly F-21 — view 2 of 4
Firefly F-21 — view 3 of 4
Firefly F-21 — view 4 of 4

How it works

It brakes like a car.

  1. 01

    Braking

    Friction pads against internal surfaces, the way a car slows.

  2. 02

    Speed

    One constant rate from 30 to 125 kg. No adjustment.

  3. 03

    Descent

    Smooth, stable, jerk-free. No free fall.

  4. 04

    Power

    None. No motor, no battery, no electronics.

Explore Firefly F-21

The numbers

Built to be checked.

Figures you can look up. No adjectives.

12 s
Deployment
125 kg
Max user weight
90 m
Max descent height
0 V
Power required

What it is made of

  • 125 kg max weight
  • No power
  • Aviation-grade aluminium
  • Carbonised steel
  • Forging process
  • Corrosion resistant
  • Flame-retardant harness
  • Flame-proof rope
  • High-heat-resistant body

Where it goes

Any building with a balcony.

One device, mounted once. Anywhere people live or work above the second floor.

01Homes
02Hotels
03Offices
04Hospitals
05Schools
06Factories

3/3

Standards met

Six years of engineering

Aviation-grade aluminium30–125 kg · 0 V

Certified and tested

Tested to three standards.

  • 01EN 341:2011 Class A
  • 02ISO 22846
  • 03CE Marked
Firefly F-21 — FrontFirefly F-21 — Three-quarterFirefly F-21 — SideFirefly F-21 — Rear quarterFirefly F-21 — BackFirefly F-21 — Rear quarter, other sideFirefly F-21 — Side, other sideFirefly F-21 — Three-quarter, other sideFirefly F-21 — TopFirefly F-21 — BottomFirefly F-21 — With rope

Order online

From ₹46,999

Choose a length, pay securely, and it ships to your door. Our team installs it at your location.

Length3.5 m · up to 1st floor · Black · ₹46,999 incl. GST
1
₹46,999incl. GST
Not sure? Most floors are about 3.5 metres. Ask on WhatsApp and we'll confirm.

Ordering more than one length? You can add more at checkout.

Ships in 3 working days. Free delivery across India.

EN 341:2011 Class A · ISO 22846 · CE Marked

Questions

Before you decide.

The questions we hear most, answered plainly.

Something else? Ask on WhatsApp
01How often does it need inspection?

Inspect it once every 4 weeks, and before any use.

02Can a child use it?

The device is speed-regulated from 30 to 125 kg — a 30 kg child descends at the same controlled speed as a 125 kg adult, automatically.

03What if the power is out?

It needs no power at all. No batteries, no electronics — a fully mechanical friction-braking system, unaffected by an outage.

04How long does installation take?

It's a quick installation, done by our team at your location.

05Can it be reused?

Not after an emergency descent — it must then be taken out of service. Service life is 3 years.