As advertised, the tube is about 2 feet long and full of streamers, glitter, confetti with a compressed air pocket at the bottom. Twisting the tube releases the pressure and the streamers and confettus (Not really the actual word) spread out in the air in a cone for about 20ft in front of you.
The best way to describe these is as a tube of dangerously compressed party. I mean, one full twist on the bottom and it looks like you murdered Lisa Frank's imaginary friend. If you're too young for that reference then: It's like the celebration if Katy Perry was elected president. These are not the little poppers you had as a kid, they make a seriously loud noise, and shove enough glittery sparkles and colorful paper into the air that you'll be picking stuff out of the lawn, carpet, or small children for weeks. Needless to say (Ryan) don't point these at people if you're too close.
On a side note, did you know that you can buy real shredded money from the US government in 5lb bags. They sell it for art projects or confetti or whatever you want. I swear to god. Google that, it's crazy.