These beautiful flowing curves have fascinated mathematicians for centuries and now its your turn. Create wildly different patterns with this classic and absorbing art set. Its always time to have a laugh with NPW whether it be a birthday, office prank, sleepover, party or just because you want a mega LOL. NPWs award winning stationery, toys, games and gadgets amuse children of all ages. There is never a dull moment with NPW in your life!