BULL FIGHTER By Gemstone FireworksBULL FIGHTER packs a punch with its LARGE 30mm tubes, you get big bursts and big noise from this action packed firework! An excellent firework to make some noise, you will feel the power of this one whilst bringing out the 'oohs' and 'aahs'! Specifications Shots Duration Bore 36 50s 30mm Firing Pattern Powder Weight Noise Level Straight 660g 10 10 Further Information Quality single ignition barrage. An easy and safe, light once & leave it firework.