Ring Support with Clamp /
טבעת עם מחזיק
612 - For attaching to the rods of
        apparatus stand, zinc plated.
        Available in 40, 50, 60, 70, 80, 90,
        100, 120 and 140 mm. Inside
        diameter.

Extension Rings / טבעת עם זרוע
616 - These rings are made of cold rolled
        steel and fast by means of clamp
        holders. Zinc plated. Available in 40,
        50, 60, 70, 80, 90, 100,120, 140, and 
        160 mm (please indicate size).

Rings, Open / טבעת עם זרוע
618 - This Open Ring can be held by a
        conventional Clamp Holder to
        support stand, Zinc plated,
        Diameters the same as No. 616
        (please indicate size).