size: 2.5" X 2.5" 3" X 3" 3.5" X 3.5" 4" X 4 " thickness:1.6mm-2.5mm finish: bright brass plated,dull brass plated,bronze plated,antique copper plated,white enamelled,silver enamlled and prime coated are available. other finishes and sizes are available Origin CHINA Material steel