Excellent holding power holds documents securely. The horizontal shape is also available in a variety of colors. Plus, theyre eco-friendly. A wide lineup of A4 sizes with a spinal width of 3 sizes. Bound thickness: 0.6 inches (15 mm); Cover thickness: approx. 0.02 inches (0.45 mm); Weight: 4.2 oz (120 g); Suitable capacity: 150 sheets; Hole spacing: 3.1 inches (80 mm); Material: Cover = 70% of old paper pulp blended. 10mm binding thickness holds approximately 100 papers. Eco Mark certified product; Green Purchasing Law Compliant product; Product listed in the Green Purchasing Network (GPN)