This single-arm heavy duty boom comes with a solid steel pillar, a long solid aluminum arm and a pillar focusing rack. The diameter of the holder ring is 3-1/4" (84mm). It is an ideal stand for gemologists, collectors, engravers and engineers in industries.
Features & Specifications:
- 3-1/4" (84mm) Holder Ring
- 26" Overall Length
- 20" Single Arm
- 16" High Pillar
- 10" x 10" x 3/4" Solid Cast Steel Base
- Shipping Weight: 45 lbs