TNT Fireworks hit a grand slam home run with this one! They're bigger, fuller, higher and heavier than any other Cannister shell on the market today. Specially built to exacting standards and with technological tricks found only in the Blastmaster, this pack of 24 high compression, high performance shells rise up to 300 whopping feet into the air before breaking outward in the largest and fullest breaks on the market today. Other's may have big breaks, but only the Blastmaster has BIG and FULL breaks... and there is a difference! Comes with 24 assorted effects and four high performance fiberglass mortar tubes.