GDK-109 is a set of clear glass round doorknobs. Made of high quality pressed glass, this knobs has a solid brass done done in an oil rubbed bronze finish. The rim of brass base folds over base of glass knob for secure grip. Silver foil under glass amplifies refelceted light to show beautiful facets. Set includes 2 knobs, steel spindle and an Allen or hex wrench for set-screw adjustment. This knobs can be used with any of our door knob roses or back plates as well as our lock sets. This knob is also available in with a base in polished brass, antiqued brass, polished nickel as well as bruched nickel. Please note that the knobs are a special order item and may take up to ten days to ship. They are returnable if you are completely satisfied.