The twisted Nail or Bent Nail puzzle has been around for well over 150 years. The object is to separate the two nails AND then return to original hooked position. A tricky puzzle that is apt to stump one for a few minutes. This is a bundle of 12 (twelve) IDENTICAL Puzzles. Packaged bulk. Perfect for stocking stuffers, prizes, tavern doo-dads, corporate gifts, and party favors. Almost everyone is drawn to this puzzle and needs to give it a try. It is tricky, fun brain teasers. NOT overly difficult. But it can stump some people for quite a while ! Nails are approximately 2 1/4 inches long. Solid, rugged puzzle. When you get real good attempt to do it behind your back and baffle your friends ! Recommended for ages 14 to 100 years. Bundle of 12 identical Bent Nail Puzzles. Returns are always cheerfully and promptly processed. This is a bundle and MUST be returned as a complete bundle for any return to be processed.