A one of a kind gift box that adds excitement and fun to gift giving and requires out of the box thinking to solve!At first this puzzle box looks complicated and difficult to solve, the lid holds four letter selectors that can each be rotated to select one of six letters that click into place providing 1,296 (6^4) possible combinations of letters that can be selected by the user. However don't be fooled, these letter selectors do absolutely nothing to help you to unlock the puzzle box and are purely a distraction to confuse and prolong the users frustration (and fun!). The puzzle box can only (but not obviously) be unlocked by spinning the box on a flat surface, the lid can then be simply lifted off and the gift inside retrieved. The box can then be locked again by placing the lid back on and lightly shaking the box to engage the locks.There is however a clue hidden within the four letter selectors to help the user to discover how to unlock the box: the letter selectors click into the positions of each letter when rotated however the keen observer will realise that each selector clicks into place differently (the selector becomes slightly loose) when a particular letter on each selector is selected, if all the selectors are set to this position, then the word SPIN can be read clockwise around the present, this will give the user a clue to spin the puzzle to unlock it (hopefully).The mechanism used inside this puzzle box is a unique and interesting one and is best described in the video below, there are four 6mm ball bearings (not included) which are inserted into the four channels in the side faces of the box, these ball bearings can move freely in their short channels, the lid has corresponding loops that lower into these channels when the lid is placed on. Once the lid is placed on and the box is given a light shake, the ball bearings should all be at random points in their channels, some will be across the loops in the lid which will stop that loop from being pulled out stopping the lid being pulled off thus locking the puzzle. When the puzzle is spun, all the ball bearings travel to the outside of their channel so none are obscuring the loops in the lid meaning the lid can now be freely removed therefore unlocking the puzzle.For full disclosure, I (the designer) earn $12 out of the $80 paid (ex VAT), the remaining $68 goes to Shapeways who 3D prints and ships the item.