A ring notebook that uses KOKUYO\’s proprietary \”new sensation soft ring\” It is a new standard notebook that can be folded back so that it is easy to write even in a narrow space and it is easy to look back Since the ring shape is \”D-shaped\”, the ring width is compact and there is no bulky feeling unique to ring notebooks Since the rings are colored, you can distinguish them by their spines when classifying them by color It is a cut-off type with micro-perforations that can be separated cleanly