A perfect gift for Mr or Mrs Know-it-all.Even if they think they have the answer to every question, throw this in front of them and watch as their pretentiousness disappears fast!The Hard as Nails set consists of 5 puzzles all of varying difficulty, and all created using big 6 inchers (nails that is)Start with the level one puzzle 'The Nail Biter' and work your way through the first four levels. Simply separate the two nails and then reattach them. Sounds easy? You try it!Once you have managed the first four levels, then you are faced with the Ultimate nail puzzle 'The Bed of Nails'! You have to somehow balance ALL SIX of the silver nails onto the head of the coloured nail.All puzzles are guaranteed to cause maximum frustration and irritation, as the recipient tries desperately to solve them. Meanwhile you can sit back and laugh as they try!GIFT STATS: Hard as NailsPackaging Measures: 32cm x 13cmPackaging: Gift Box