Modern wall calendar is made from chalkboard adhesive vinyl, measuring approximately 22" wide x 20" tall. Daily squares are roughly 3" x 3". Regular chalk or Chalk Ink Pen (not included) can be used to write on this material. To erase, wipe clean with a damp cloth.
Textured/sandy/grainy surface may have mixed results; this material adheres best when applied directly to a flat, smooth, clean surface.
Calendar is removable but not reusable.