Key Specifications/Special Features: 2-, 3- and 4-D rings with 1 to 4 inches PP cover and cardboard inside Available in different width (1, 1.5, 2 and 3 inches) With different clip inside (2-, 3-, 4-D ring binder) A4 size Dimension for d ring binder: 315 x 265 x 37mm for one inch 315 x 275 x 49mm for 1.5 inches 315 x 280x 59mm for 2 inches 315 x 290 x 75mm for 3 inches