Precision Optical lab slit 20um x approx 4mm.

ThorLabs Ø1.5" Accessory Adapter for Breadboard Frames PWA120 (Best Offer)

Thorlabs 36mm x 36mm x 100mm concave optical bench aluminized mirror and holder

Newport B-3 Optical Mounting Base Plate Lab Optics Breadboard Adapter Used

Optical Lab Dichroic Filter 515nm (green) peak with collimating lens

Lot Of 29x Breadboard CNC Attachments (Some Thorlabs)

Thorlabs KBS98 Kinematic Breadboard Seats - High Repeatability Mounting - 4X

Optical Flat Plate Optical Experimental Breadboard Hard Platform