18 inches in diameter, one piece injection blow molded acrylic with 5.91 inch flange that can be used as a solid flange or a twist lock with 4 notches.
Globes are bronze acrylic, one piece injection blow molded. The are 18 inches in diameter with a 5.91 inch flange and can be used either as a solid flange or a 4 notch twist lock neck.