Designed specifically for the 100 Envelope Challenge, this loose-leaf notebook will help you better manage and track your savings goals. Plus, it’s perfect for couples to work together to achieve their savings goals. Dimensions: A5 Due to manual measurement, the size may vary by 1-3 cm. Material: High-quality PU material, durable and great touch. Color: There are many colors to choose from Binding: Loose-leaf design makes it easy to add, remove, or organize pages. Product Details: This loose-leaf notebook is designed to help you participate in the 100 Envelope Challenge, a challenge designed to help you save and achieve your financial goals. Each day, you can use a different envelope to deposit a specific amount of money, thereby reaching the goal of saving a large amount of money after 100 days. You can record the amount, date and purpose of each envelope to keep your savings plan organized. Additionally, this loose-leaf book provides opportunities for couples to participate. You can work with your partner to track your savings progress and achieve your financial goals together. Whether participating in a challenge as a couple or for personal use, this laptop will help you better plan and manage your savings goals.