This monster-sized firework contains 4 different cakes.

This 4 stage mixed-effect firework packs a whopping 306 shots and a duration of over 3 minutes.

Containing whistles, Palms, Willows, time rain comets and breaks with a multitude of colours and mixed firing patterns of straight, V-Shape, W-Shape and Z-Shape that makes for a thrilling climax you won’t be disappointed by this masterpiece from the experts at Brothers Pyrotechnics.  

Grand Slam Specifications
Carton Quantity: 1 x Grand Slam
Firework Brand: Brothers Pyrotechnics
No. of Shots: 306 
Approx Firework Duration: 210 Sec
Product Weight: 20kg
NEC (Net Explosive Content): 2930.5g 
Firework Dimensions: 105cm x 29cm x 17.5cm 
Firework Bore Size: Mixed
Vertical or Fan: Vertical and Fan
Noise Rating: 7/10 
Firework Classification: 1.4G
Firework Category: F3 
Safety Distance: 25 Metres