These are individually packaged mini metal brain teaser puzzles. Each puzzle has a couple of pieces that are tied together. It is your job to unlock and separate the pieces! These little logic toys are a fun way to keep your brain sharp. Ages 6+. Each steel puzzle is Interesting and Challenging, made up of 2 twisted wire shapes, where you manipulate the puzzle pieces until you can separate them to solve the puzzle. Instructions to solve the puzzles on the back of the package. Box is 2″ x 2″ x .75″.