OKLAHOMA CITY, OK (CBS) -- Quick, what's three feet high, four feet wide, twenty-one feet long, and travels the United States? Give up? It's the world's largest chocolate bar, and it made a stop in Oklahoma City Tuesday.

It weighs 12,190 pounds, it has 1,200 pounds of almonds in it, 5,500 pounds of sugar. And it travels the country in this sweet, air-conditioned ride. The world's largest, and the "World's Finest" chocolate bar made its only Oklahoma stop at Windsor Hills Baptist School Tuesday, to promote awareness of eating right and staying fit. Say what?

Sarah Lynn Brannan, tour director says, "With the many problems, with childhood obesity and obesity in general, they wanted to make sure that they're not part of the problem. They want to be part of the solution."

And the "Think Big, Eat Smart" tour does that by bringing a serious message to every school it visits. The tour's crew also encourages each student to get a move on...and of course they provide the incentive.

And while the upperclassmen were apparently too cool to get in on the action, they got the message. Just don't take away their chocolate. Courtney Rodriguez says, "If I had to choose from chocolate and actually healthy food I'd probably choose my chocolate."

Eric Lee says, "I love it more than that guy, which he's my teammate so, that tells you how much I love it, especially the almond ones."

A giant chocolate almond bar to promote healthy eating habits may sound a little nutty, but you have to admit, this thing pulls in the crowds.

Letting them know that treats are okay, but in moderation, and just the giant chocolate bar is really to make the message more memorable and get the kids' attention. It's something they're very interested in.

The big bar and its crew have already made their way through most of the nation's east coast, they're headed to New Mexico next.