"Page size: 3-1/2"" x 6"". 12 months (Jan.-Dec.). Our most popular desk calendar refill with a monthly tab set included. One tab per month to allow for easy referencing of months and dates. Tab set is printed in red and includes a large current month reference plus one past and one future month on the front side. Reverse side is lined for projects, to dos or reminders. Refill offers a two page per weekday spread; Saturday and Sunday have one page each. Half-hourly appointment times, 7:00 a.m.-5:00 p.m. Julian dates on each open page spread. Fits on all standard 17-style bases. Tab set can be used with all 717-style calendar refills. "