AT-A-GLANCE Erasable Wall Calendar 2016, 30 / 60-Day Undated, Reversible, Horizontal, 24 x 17 Inch Page Size (PM263P28) Erasable and reversible wall calendar gives you the option of planning monthly; 1 month or 2 months at a time. Write-on / wipe-off surface lets you change plans as needed while keeping notes neat. Reversible product offers you a choice of planning time frames. Side 1 features a 30-day calendar. Side 2 features a 60-day calendar. Both 30-day and 60-day layouts are undated to allow you to use the calendar at any time. Page size 24 in. x 17 in.; overall size 23.75 in. x 16.75 in. 1 / 16 in. Blocks for scheduling are 3.19 in. x 2.13 in. on side one; 1 9 / 16 in. x 2 1 / 16 in. on side two. Includes notes space for making next months plans. Bright white background allows for easier viewing and reading. Features blue print on paper containing 30% post-consumer material.