<ul><li>The adjustable iris diaphragm are made by high quality alloy and steel,reliable performance and durable.</li><li>It is use for microscope ,camara,and other optical instruments.</li><li>Perfect microscope accessories, exquisite workmanship, can be widely used in microscope. With good durability and stability.</li><li>You can reach us anytime for any query and I'll available 24x7 to assist you, have a good day.</li></ul><br><br>

Microscope Kit 1-12MM Adjustable Iris Diaphragm Aperture Condenser Thread 10 Blades Metal Parts Microscope Lens Adapters (Color : 1PC iris Diaphragm, Magnification : 1-12mm)