The cleaning pencils in the set are cleaning tools based on active carbon technology.

The dry cleaning agent containing activated carbon binds most contaminants that cannot be mechanically removed (eg fats, oils) in its own material by means of a secondary chemical bond, a so-called van de Waals bond. During cleaning, the product thus does not spread fats and oils on the surface to be cleaned, but binds them and removes them. There is a sponge in the cap of the cleaning pencil, which serves as a container for the active carbon dry cleaning agent. The amount in the sponge can be enough for up to hundreds of cleanings (depending on the degree of contamination and use). Before using the cleaning pen, the cap must be firmly pushed onto the cleaning pen and twisted 1-2 times (as if it were threaded and we wanted to screw it on). In this case, the cap's sponge delivers another dose of fresh cleaning material to the cleaning head.

Before the activated carbon cleaning process, mechanical impurities (dust and other particles) must be removed from the surface to be cleaned. For this, we recommend the LENSPEN air pump and the built-in, extendable brush of the cleaning pencils.

Contents of the set
- 1 Lenspen Original cleaning pencil for larger convex lenses
- 1 FilterKlear cleaning pen for optical filters
- 1 MicroPro cleaning brush for small lenses (for front lenses of compact machines)
- 1 microfiber carrying bag