package of mechanical pencil leads

package of mechanical pencil leads.
Lead Specifications:
These are HB 0.5mm mechanical pencil leads, measuring 60mm in length, with 20 pieces per pack.
Origin:
The leads are marked as “R&D KOREA,” indicating their research, development, and likely manufacturing origin.
Brand:
The packaging also features a logo with the text “LUOGAN,” which appears to be the brand name.