The simplest types of ballpoint pens are disposable and have a cap to cover the tip when the pen is not in use, or a mechanism for retracting the tip,[4] which varies between manufacturers but is usually a spring- or screw-mechanism. –––– –––– –––– – –––– – –––– –– – https://lzerestisztts26037.blogdanica.com/22397409/die-pencil-drawing-tagebücher