Large Space Age Clam Broth Opalescent Saucer Pendant Post Lamp Globe. This is a large shade that measures 14 in in diameter and is 11 in tall without the finial which you will need to find one that you like. The opening for your either post fixture or ceiling fixture or pendant lamp chain and fixture is 5 and 7/8 in diameter that is how big of a plate you to mount to this lamp. You will notice a couple nibbles around the opening quite common and will affect the last none nor will it be seen. The color is phenomenal it's all clam broth not milk glass clam broth, I have two of these available so if you want to pair for a project by both.