Iron Age Designs Interlaken Home Register Cover - Multiple sizes and finishes Item size is 5.5" x 12" Inch and fits into 4" x 10" openings Made from recycled cast ductile iron Stylish Interlaken design with a bronze finish Can be drilled through for side wall mounting - drill guide marks included Made in the USA and comes with a 1,000 year guarantee not to bend, break, bow, or chip