This is a sealing machine, hand stapler, cardboard stapler, or box stapler, made by Okabe Lock. It was stored in an outdoor shed, so there is dirt, rust, and scratches as shown in the images, but there are no issues with its use. The staple size is 19mm. We used it at home to seal 10kg potato boxes. Please take a look at the images and if you understand, please consider purchasing it.