This is an automatic shredder from Sanwa Supply. It can shred A4 size paper folded in half. It's electric. Purchased on Amazon on July 23rd, I am selling it now that I've finished shredding what I needed to. It's clean, as I've only used it once. Purchase price: 4780 yen Some paper scraps remain in the blade and tray areas. I couldn't clean them completely. No warranty, the box will be reused from Amazon. Instant purchase welcome.