Loose-leaf desk calendar refill features each weekday on a two-page spread with ruled, half-hourly appointment times from 7 AM to 5 PM as well as past, current and future months reference. Planning pages range 12 months from January to December. Bases and refills are sold separately. Refill is sized and two-hole punched to fit standard 17-style bases (E17, M17, and J17).