This AT-A-GLANCE® Desk Calendar Refill (AAGE71750) helps you update your old desk calendar to the current calendar year. The convenient two-page spread features space for appointments in half-hour increments plus the current， past and future month for easy reference. It also has an open writing space where you can jot down notes and thoughts throughout the day. These refills are designed for use with your E17-style calendar base.