Based on this product's specifications, here are some alternatives and similar models
Lead refill HB Rotring Polymer Leads S0312700
Summary description:
Rotring Polymer Leads are high-quality lead refills with HB hardness and a thickness of 1 mm. Designed for precision and smooth writing, these leads are perfect for technical drawing and everyday use. The polymer material ensures durability and consistent performance, making them a reliable choice for artists and professionals alike.