1.5” Diameter
First photo shows all items included:
(1) 48” extension bar
(2) 36” extension bars
(2) 30” extension bars
(3) 24” extension bars
(4) support bars (black)
(2) leg clamps
(8) holder clamps
(4) memory clamps
(4) T clamps
Two (2) have been drilled through as additional support (see pictures)
One has a portion missing at one of the wing nuts, but it still tightens (see pictures)