Particle cut: Simpler document shredders only cut the paper into narrow strips (strip cut). Better document shredders reduce the document into small particles. This cutting method is called particle cut or cross cut.
Size: it has a picture with the article... not very big... The security level is 4 according to DIN 66399.
something like this: https://www.3ppp3.ch/images...

LG

Many thanks 🙏🏻