Ao American Optical Microscope Boom Arm 90 Degree Adapter

Adjustable Microscope Boom Stand Heavy Duty Large Stereo Arm Table Stand Holder

Diagnostic Instruments 30020 Microscope Boom Arm Translation Mount, ø37mm

Microscope Boom Stand post and 9" arm for all kind stereo scopes

Boom Arm for Microscope/Lab 1 1/2" Dia X 12 1/4" Long

Lab Microscope Boom Arm 1-1/4" OD with 90 degree adapter 21-1/4" long

Microscope/Lab Boom Arm 20 1/2" x 1 1/2" Dia w/ 90 Degree Adapter

AO American Optical Stereo Microscope Boom Arm in Great Shape!