Winter Lane Set of 3 Mercury Glass LED Orbs with Timer (Gold) Mercury glass ornaments add beautiful color to your holiday season Built-in timer: 5 hours on, 19 hours off No unsightly cords On/off switch Requires 3 C batteries each, not included Mercury glass ornaments add beautiful color to your holiday season Lights on the inside of each make them come alive Large Ornament: Approx. 7-1/2"H Medium Ornament: Approx. 5-1/2"H Small Ornament: Approx. 4"H