Product Details 1. The Ben 10 Alien Creation Chamber mini sets lets kids create thousands of unique alien figures with a slide of the shell. 2. The set includes Two figures – Upchuck & Heatblast, with interchangeable parts. 3. Using the chamber, kids can mix and match parts to create a different custom Ben 10 alien creature every time. 4. The Mini Chamber is portable & can be carried anywhere. 5. Other Alien Creation Fig (sold separately) can also be used.