20 inches in diameter, one piece injection blow molded polycarbonate with 5.91 inch flange that can be used as a solid flange or a twist lock with 4 notches.
Globes are white polycarbonate, one piece injection blow molded. They are 20 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.