The Galena Century Radio (GCR) Crystal Detector Dual System – Kit comes fully disassembled awaiting your preferences for fit and finish.  The Kit measures 5.75”D x 6.25”W x 3.5”H when fully assembled. The GCR Crystal Detector Dual System TW – Kit provides an attractive and convenient means for switching your crystal radio between Galena Crystal and Germanium Diode operation. This Kit contains; a Control Panel with either an American Walnut, Tropical Walnut, or Hard Maple frame and base; Rubber Feet; Brass Binding Posts (Package of 6) – Kit; a Brass Diode/Crystal Switch – Kit; a Brass Crystal Detector Arm Structure – Kit; a Galena Crystal mounted in a Brass Cup; and all Brass fastening hardware.