COSMOS Self-Adhesive Blackboard Removable Chalkboard Wall Sticker for Home and Office 79" x 18" with Erasable White Chalk Marker Premium adhesive chalk board wall decal. Removable & repositionable Comes with a white chalk marker, dustless and erasable Decal can be cut into smaller chalkboards or multiple decals can be combined to create a giant chalkboard. Also works with regular chalk Size: 79" x 18"