ST-321B

Enlarged Extensible Length	1045 – 1706 mm (3.43 – 5.6 ft)
Boom Enlarged Extensible Length	53 – 660 mm (2.09″ – 25.98″)
Mounting Screw	NS5/8 (pipe thread), U5/16 (adapter)
Finish	Steel pipe for general use, black, mat finish, paint
Weight	2.9 kg (6.39 lb)
Accessory	Thread adapter …1