• Replacement of 100 sheets with margin and 20 additional sheets. • A4 size with 4 holes. • 90-gram high-quality paper. • 5x5 grid with header for topic and date identification. • 5 bright color bands for color classification. • Margin grid: 4x4mm squares, horizontal line, 2.5mm rule, and plain. • Made with durable materials and modern design. • High quality guaranteed.