Compatible with A4/B5/A5 paper
With just one hole punch, it can be used with 3 types of paper types of A4 (30 holes), A5 (20 holes), B5 (26 holes).Size: 3.7 x 2.0 x 1.1 inches (9.3 x 5 x 2.8 cm); Weight: Approx. 2.4 oz (70 g); Number of Holes: 6 Hole Diameter: 0.2 inches (5.5 mm); Depth: 0.3 inches (7 mm); Hole Spacing: 0.3 inches (9.5 mm); Number of Perforation: 2