Microscope Adjustable Aperture, SK6 SK8 SK12 SK23 SK25 Microscope Iris Adapter, Optical Diaphragm for Microscope(SK12) auspowers_batchone [Rehabilitative Stretching Exerciser] Compare with

[Rehabilitative Stretching Exerciser] Compare with Cervical Traction Device on the market

friends and loved ones using these cute stickers

Internally threaded: 7/16" -20

you can substitute other suitable screws by yourself if you think you need it

Microscope Adjustable Aperture, SK6 SK8 SK12 SK23 SK25 Microscope Iris Adapter, Optical Diaphragm for Microscope(SK12) auspowers_batchone [Rehabilitative Stretching Exerciser] Compare withMicroscope Adjustable Aperture, SK6 SK8 SK12 SK23 SK25 Microscope Iris Adapter, Optical Diaphragm for Microscope(SK12) Specification: Item Type: Iris DiaphragmSK6Outer Diameter: 13. 0mmMinimum Aperture: 0. 8mmMaximum Aperture: 6mmMaterial: MetalThickness: 6mm8 BladesPackage List: 1 x Diaphragm Product Features APPLICATION: Small apertures of different diameters are provided in the optical system to meet different light transmission requirements.