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) INDENTICAL 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 6 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. Object is to separate the two twisted nails from each other. Not as easy as it may look. Bundle of 12 (twelve) IDENTICAL Twisted Nail Metal Brainteasers. Joining the two nails back together is also a puzzle. Tricky but fun. Once one gets the hang of it do it behind your back and amaze your friends.s Real carpenters shiny nails.