Delta Pocket Puzzle Outdoor though the unit does need

though the unit does need to be plugged into an outlet

and are prone to distractions

A surprising twist on the pop-up book

the most clever of artisans plan ahead to maximize the beauty of their work (not to mention their scores

Printed by the United States Playing Card Co

Delta Pocket Puzzle Outdoor though the unit does needThree is the magic number for the delightful Delta Pocket Puzzle. Give the triangular pieces a tug and the puzzle begins to slide apart in three directions at once. Something catches, however, and the metal trio remains locked together. The design of the Delta puzzle is such that once you find the solution, you'll want to take it apart and put it back together, again and again, just to appreciate the simple elegance of the engineering. Designed by