Bloc de notas sigel HO290 A3 420×297 mm, encuadernado por arriba, sin líneas

sigel HO290 A3 writing pad offers plain, top-bound sheets in a large 420 × 297 mm format suitable for sketching, layouts, presentations and general note-taking. The pad is designed for easy handling: the top binding secures the sheets while allowing quick tear-off when a page needs to be removed. Lightweight and portable, this A3 pad supports creative work both in the studio and on site, providing ample space for drawings, diagrams and single-sheet deliverables.

Advantages

The plain pages provide an unobstructed surface for sketches, technical drawings and freehand notes without ruled lines or grids. Top binding keeps the pad compact and enables comfortable use in portrait orientation while protecting inner sheets. The A3 size gives a larger working area compared with standard formats, useful for presentations or multi-element layouts. The sheet quality is suitable for pencil, ink and marker use, and the pad’s construction allows reliable page removal without damaging remaining sheets.

Suitable for

• Sketching and freehand drawing
• Architectural and layout drafts
• Presentations and flip-through visuals
• On-site notes and field sketches
• Art classes and workshop exercises

Key specifications

• Format: A3 (420 × 297 mm)
• Binding: top-bound
• Sheet type: plain (unruled)
• Orientation: portrait-friendly with top binding
• Quantity per pad: standard writing pad configuration

How to use

Place the pad on a flat surface or drawing board and work on the top sheet while the binding holds the remaining pages. For sketching or drafting, use pencils, pens or markers suitable for plain paper; test marker bleed-through on a corner sheet if necessary. When a page is finished, fold along the binding or carefully tear it off at the perforation or glue line, depending on the pad construction. Store the pad flat or upright to avoid bending the sheets during transport.

Recommendations

For best results, use graphite pencils, fineliners or alcohol-based markers designed for sketching; if using heavy ink or wet media, place a protective sheet beneath the working page to prevent transfer to subsequent sheets. Keep the pad in a dry environment and avoid prolonged exposure to direct sunlight to maintain paper quality.