This is the 2mm internal mechanism for the Kobo-Kusabi pencil. I bought it because I wanted to try using it with something other than 0.5mm lead, but the Kobo-Kusabi pencil itself was too thick for drafting, so I never used it and just kept it in storage. I only used it once to test it out, and there are no scratches. I purchased it in December 2025 from a retailer. *Box not included.*