"Hama cleaning pen for lens and filter cleaning, 11.5 cm long, Lenspen Classic, red/black Technical details Color: red Colour: red, black Product area: Photo & Video Special feature: integrated cleaning brush Cleaning tip material: special velvet Material: plastic Cleaning tip diameter: 13 mm Pen length: 11.5 cm Consumer information Please note the following when using: 1. Use the black slider to push the brush out of the protective chamber. Remove dust particles with lens brush. 2. Remove the cap on the opposite side. Remove the dirt with small, slow circular movements using the special velvet. 3. In the case of stubborn dirt, breathe on the lenses and repeat the process. Not suitable for cleaning camera mirrors. The Lenspen is only suitable for small optical surfaces.".