Kaweco's Sketch Up Corrector Brass pencil eraser will precisely clean up any smudges, errors or design changes. The high quality guarantees an almost residue-free etching. Thanks to the comfortable weight, you can optimally control the pressure so that the paper remains undamaged. Pressing the button opens the metal clutch mechanism, allowing the eraser to be extended, retracted, or replaced.

The eraser comes with one 5.6 mm eraser. 

Note: New erasers should be inserted through the tip of the holder. Do not remove the top push button.