National Solid Brass Door Viewer

National Solid Brass Door Viewer is a solid brass door viewer that adjusts doors up to 2 to 18" thickness. Its a great brand for securing your homes, offices, other spaces. Absolutely durable, the products from National provide excellent quality. They have always tried to produce good quality, safety-identification products to help make the world safer place to be in. They try to deliver the highest quality products in the fastest way possible. Providing a safe environment by making the best quality products is their only motto. (1). Polished solid brass housing and glass lens. (2). Offers 160 degree lens angle for extra-wide viewing. (3). Includes precision-ground glass lenses. (4). Life Span Limited. (5). Fits doors 1-38 inch to 2-18 inch thick. (6). Offers 200-degree lens angle for wide viewing.