When we play blocks, we play BIG. "Stack" pits five Cat® machines, including Excavators and Telehandlers, against a mountain of massive JENGA® blocks. The object of the game is for heavy equipment operators to remove and then reposition a stack of 27 JENGA® blocks one at a time, without toppling the structure -- using only their Cat machines and attachments. #BuiltForIt Learn more: http://bit.ly/Q7m9Md Watch the Stack behind-the-scenes video: http://youtu.be/uLhOOiPGrq4. CONNECT WITH CAT PRODUCTS: Facebook - https://www.facebook.com/catproducts Twitter - https://twitter.com/CaterpillarInc Google+ - https://plus.google.com/+CatProducts JENGA® IS A TRADEMARK OF POKONOBE ASSOCIATES. LICENSED BY POKONOBE ASSOCIATES. ALL RIGHTS RESERVED. ® REFERS TO U.S.A. TRADEMARK.