Extension band 18 mm, extra strong, for roller shutter or awning

- Comes with simple rolluikonderdelen.nl manual
- 18 mm wide strap
- Colour grey with black edge
- length 6 or 12 metres
- Strap length required is approximately roller shutter height x 2 + 1m
- For a roller shutter with a strap reducer, the required strap length is approximately 4x shutter height