- Description: surplus from R&D laser university department. This is a lot of 7 pinholes of different diameters (same outter diameter, it just changes the diameter of the pinhole itself). Seem to have very little use. They are not magnetic... they seem aluminum made. For measures, see pics.
- Condition: absolutely great. Please, see pictures as these tell you exactly what to expect.
- Offers: feel free to make offers!