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 a polished nickel 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 oil rubbed bronze. 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.