Use as the base for all other Impossible Box Add-on sets. Start with this base box that is impossibly self-closing, add some layer shapes to embellishment and you have the start of a creatively, impossible box. Works with other Impossible Box add-on sets. Fill with treats and watch the fun begin when the top lifts up but not off. Includes 5 thin metal dies. Assembled box measures approximately 1.5 x 2.5 x 1.5 inches.
