This is a ball-bearing, dual-arm, heavy-duty boom stand for stereo microscopes. This boom stand weighs about 38 lbs.

Features & Specifications:

• A Versatile Boom Stand Covering Large Working Area
• Ball-Bearing Dual Arm Design for Easy Operation
• 22-1/2" Horizontal Double-Arm
• 15" (381 mm) High Pillar
• 11 1/8" x 10 1/4" x 7/8" (284 x 260 x 22 mm) Solid Cast Steel Base
• 38 lbs in Weight
• Manufactured under ISO 9001 Quality Control Standard