handmade diy puzzle ， 3d three-dimensional intelligence puzzle ， educational toys . cultivation of child stereo space combination concept ， logic ideation .without any tools ， waive scissors bring risk and trouble ，eps foam board + paper compound plate ， double faced fine printing ， not need plus glue ， direct insert huaidan ， general paper 's ， durableness ， bridgeis damage .pin fashion ， congener mimetically match ， malapane complete after ， three-dimensional sense of super ， show master unique originality ! is very good the family pack accoutering !