The term KAMIKARA originates from a combination of two Japanese words kami ( paper ) and karakuri ( mechanical mechanism ), defined by renowned Japanese paper engineer Haruki Nakamura. Each kit is intuitively designed and easy to build without requiring any tools. Kit includes perforated paper sheets, rubber band, and English pictorial instructions. Once the paper pieces are popped out, each of them that require folds are scored for easy assembly. A paper hook tool is included in the kit to assist installing the rubber band. To setup the paper action, first open up the armadillo and push down on the belly where marked. Place the stretched armadillo gently on a table and tap its back to see it curl up like a ball in a split second! Enjoy the next generation of paper crafts!