This product is designed exquisite， no tools， no fasteners， metal or glue needed to build a three-dimensional sculptures. All you need is your hand! Only， bending， folding， assembly， using instructions include illustrations.Currently it covers a wide variety of world-famous engineering feat in a variety of styles， such as the Titanic， the Eiffel Tower， the Ferris wheel and more.Depending on the complexity of the model， metal work from 30 minutes to several hours to complete.For the crowd: aerospace， art， desk accessories， gifts for geeks， give him a gift， a gift to the children， hobbies， office toys