The last two photos are for illustration to show how the part are used for attachment for Leica microscope. I also have those parts available if interested, contact me. Contact me if you are outside USA. The item "Stereo microscope horizontal bar light aluminum boom stand Leica Nikon Olympus" is in sale since Tuesday, August 14, 2018.This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical/Lab Equipment Attachments & Accessories\Microscope Parts & Accessories\Other Microscope Parts & Accessories". The seller is "theimportexporter" and is located in Seattle, Washington. This item can be shipped worldwide.