4" diameter Whimsy base . Cut your glass 4" x 6" or up to 7" x 7", With Masking tape, tape off the bottom 3/4" on the center 4". You may add frit or other glass elements above this area. Bases available in brushed nickel or black or they can be spray painted and clear coated for color of your choice. See Optional light kits with 7w Incandescent bulb or LED Bulbs. May also be used with LED or candle tealights as pictured above. No glueing or drilling required. Made of 5052 aluminum.