SONGMICS Monthly Chalkboard Calendar Large Wall Sticker Paper Planner Blackboard Organizer 23.6" x 55.1" UFWT57M Monthly Chalkboard: Remind you of your planning by writing your whole month's plan exactly on the wall sticker Self-adhesive & Removable: No glue residues, the removable vinyl chalkboard will not damage your wall surface Eco-friendly Material: Purified PVC material, no irritating smell, non - toxic, green and healthy. Please feel free to use the chalkboard decal paper Reusable Chalkboard: Wipe words clean with damp cloth, then you can reuse it as a new chalkboard calendar, eco-friendly and saving money Large Size: 23.6" x 55.1"(60 x 140 cm)