Single Arm Boom Stand for Stereo Microscopes - Aluminum Arm, Pin Mount, 76mm Focus Block, Amscope, Mfr#: BSS-120B-FR

This single-arm heavy duty boom comes with a solid steel pillar, a long solid aluminum arm and a pin-tail focusing rack. The diameter of the holder ring is 3" (76mm). It is an ideal stand for gemologists, collectors, engravers and engineers in industries. Features & Specifications: 3" (76mm) 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