This is a slate pencil, a writing tool for use on slates. It's a tool that was used in schools long ago. Each one has a different shape and length. These items are carefully handmade. I understand that they are products from over 100 years ago. Similar products exist today, but their uses and construction seem to be very different. They have become very rare items now. They have great value as historical artifacts. I am offering them for sale with the hope of delivering them to someone who understands their value. Everything is in its original condition. The length is approximately 15cm, and some are broken. I don't want to handle them too much, so I haven't counted the number. Weight: approximately 752g