Tell Manufacturing?s KT2100 Series Empire Ball Knobs offer a light duty tubular, grade 2 knob in a satin stainless steel finish. Our KT2100 Series was built to meet the commercial needs of each application, whether it be entry, storeroom, privacy and/or passage. These knobs can be used in new construction or replacement hardware and will fit into a standard 161 door prep. Tell Manufacturing offers a solid selection of commercial hardware for your exterior and interior needs.