8411 Chromastone is one of the Ben 10sets released in 2010, intended for ages 5-12. It has 21 pieces.
"In Ben 10 Alien Force, transforming into the nearly indestructible living crystal Chromastone gives Ben the ability to absorb any type of electromagnetic energy and emit it as a laser beam. Buildable by kids aged 5+. Based on popular Ben 10 Alien Force story where 15-year old Ben Tennyson discovers 10 different alien heroes on the omnitrix."
The crystal-powered ChromaStone is ready to rock!
It’s hero time! When evil aliens and super-powered villains attack, Ben transforms into ChromaStone to save the day. Made of living crystal, this nearly-indestructible alien hero has the ability to absorb any kind of electromagnetic energy and blast it back as a powerful laser beam! Features glow-in-the-dark eyes and Omnitrix chest symbol. Collect all 6 LEGO Ben 10 Alien Force sets and combine them to create your own super alien heroes!
Omnitrix chest symbol!
Add to complete your set of 6 LEGO Ben 10 Alien Force minifigures!