наньюань 3d металл головоломка док кран строительная модель diy лазерная резка собрать головоломки игрушки украшения рабочего стола подарок

please note:this puzzle have 4 stars difficulty level,not suit for beginner. specifications: name: dock crane 3d puzzle material: stainless iron weight: 120g finish size: about 13.4*3.4*7.4 cm color: silver the quantity of sheets:3pcssheets age: 14+ degree of difficulty: 4 star feature: license by nanyuan. original design,no glue required. condition: 100% brand new and good quality. amazing details and wonderful diy experience. one step by step image manual,east to building it...