e/Block Buster firework

Information
has gloss	eng: The Block Buster is an illegal firecracker of large size measuring either 2.25" × 1.25" or 2.5" × 1". It houses approx. 20-25 grams of flash powder making it around 250 times more powerful than a legal firecracker. These fireworks are no longer legally produced, and possessing these can result in either heavy fines, jail time, or both. They are extremely dangerous as they are usually home made and there is no quality control on these fireworks.
lexicalization	eng: Block Buster firework
lexicalization	eng: Block Buster
instance of	(noun) (usually plural) a device with an explosive that burns at a low rate and with colored flames; can be used to illuminate areas or send signals etc. pyrotechnic, firework