Also known as Grid Rockets, these are small whistling rockets with a sparkling tail that run along a steel cable, attached to the line by a rocket holder.
The cable (not supplied) must be securely fastened at each end.
A 4…
This effect emits a loud, shrill whistle and some smoke, lasting approximately 4 seconds.
There may be minimal fallout as all pyrotechnics can produce some remnants of hot and/or cold fallout. Risk assessments must be…