This is a manual home shredder. I no longer need it because I purchased a large electric shredder. In my subjective opinion, it has no noticeable scratches and is still usable. It supports A4 size paper. While it can shred credit cards, I rarely used it for that, as it's faster to cut them with scissors. Size: Width: 29 cm, Depth: 34 cm, Height: 17 cm Measurements are approximate.