Keep your calendar up to date on school activities. Simply write, wipe away, and write again when it"s time for a change. Trimmed with a fun, snazzy design, this blank reusable calendar invites dozens of uses. Learning activities included on calendar back. 22" x 28". For best results, use with TREND Wipe-Off® Markers (T98003 and T98004). Writes easy ... wipes clean. They"re perfect for all Wipe-Off® products and most reusable surfaces. Wipe-Off® Markers have low odor, nontoxic ink with a durable medium-point tip.