The Commando Smoke Grenade generates an amazing 40,000 cubic feet of smoke. It can serve as a versatile training aid and is excellent for creating realistic disaster scenes such as industrial disasters, hazmat incidents, and aircraft crash simulation. Additional applications include SWAT training scenarios, firefighting exercises, smoke screens, airflow studies, leak detection, war games, paintball, etc. Its persistent smoke can be seen for miles. TOP (total obscuring power) rating: 2100. Smoke color: white/gray. Size: 1.5" diameter x 5" length. Fuse delay: approximately 10 seconds. Burn time: approximately 2 minutes. Use with caution and discretion. Not shippable by Air.