Spiral Bound – Silvine Twinwire Polyprop Notebooks – Silvine POLYA6AC These Twinwire A6 Notebooks from Silvine have polypropylene covers making them more robust and resistant to damage than regular notebooks. The covers are available in a range of pastel shades – blue purple pink green and orange. Silvine POLYA6 Twinwire Polyprop A6 Notebook



