... elegant design, patented detachable structure, convenient to clean Made of linear expansion coefficient of 3.3 borosilicate glass, high definition, ... healthy and durable, stainless steel mesh(304), environmental friendly, complied with GB 14942-1994 and GB 9684-88 standardHigh quality plastic ... the gap on the mesh as the basic point, align with the based, then press downward and complete the assembly ...