"Extermination ! ! Human.... Equip !!!" Attack on Titan’s super hard blade, will be presented as iPhone case!!  The special weapon which is used by human to attack on titan, the handle position will be made as special iPhone case. Metallic and shiny color will be used for painting. By pulling the handle, camera cover will be opened. Linkage action gimmick is also designed. If headphone cord is plugged in iPhone case, it will be more real to animation.