Optical parts in a plastic bag

A black cylindrical part, a white cylindrical piece and a grey attachment are visible in the transparent plastic bag. The black part has a red band, and plastic rings are visible on the white piece. The bag is crumpled, while the parts show minor scuffs and dust.

Code: fo10328
Category: Photo, microscopes, optics
Subcategory: Darkroom
Width: 8 cm
Quantity: 3 pcs
Period: 2000s onward
Material: Plastic, Metal
Colour: Black, White, Grey, Red