Based on this product's specifications, here are some alternatives and similar models
Writing notebook Maul A041090 — 300 sheets, 70 g/m², squared paper, black softcover
Summary description:
Maul A041090 is a writing notebook with 300 sheets of 70 g/m² monochrome paper in squared ruling. The softcover, black notebook is suitable for note-taking, drafts, mathematics and planning. Its medium-weight paper supports ballpoint, gel and pencil with reduced show-through, making it practical for school, office and personal use.