The TNT Big Bash Fireworks is a large consumer fireworks assortment sold seasonally through TNT Fireworks stands at Costco locations. TNT Fireworks is America's #1 bestselling brand of consumer fireworks, offering a wide range of products from ground-based fountains to aerial shells and multi-shot aerials.

As a big-value assortment pack, the Big Bash is designed for backyard celebrations and neighborhood block parties, providing a curated mix of fireworks items in a single purchase. TNT assortments sold at Costco typically combine multiple firework types — including fountains, sparklers, and aerial pieces — to deliver a complete show experience at a Costco member value price.

All TNT Fireworks products come backed by TNT's No-Dud Guarantee, which provides a full refund on any non-performing items. Many TNT products also feature GloFuze technology, a patented illuminated fuse that glows in the dark so it is always visible during nighttime use. As with all consumer fireworks, this product is intended for outdoor use only and is subject to local regulations regarding legal use.