Easy to Install, Screws onto the lamp harp after installing the lamp shade. Use these lamp finials to secure your lampshade onto your lamp harp for the table lamps or floor lamps. The ball head and the finial base can be separated. It can be used as two styles of lamp finial, the finial base can also be used as lamp shade riser. Package includes: 2 pcs metal ball lamp finials and 2 removable finial bases. Size: total height is 1.54 inches , ball diameter is 1 inch, finial base height is 0.57 inch Convertible Ball Lamp Finials Lamp Decoration Topper Finial and Finial base set