Sturdy material: Our mini chalkboards are made of en-friendly and safety wood, package includes 20 mini chalkboards, the head of the chalkboard is 4" x 3", package come individually wrapped in plastic which prevented. scratching and damage Reusable and practical: The small blackboard is erasable and reusable, can be used repeatedly after wiping with an eraser Easily disassemble and store: Chalkboards with removable stand allows it to stand up well on a table, the little stands can be fold down flat, which makes them easy to store or carry, rectangle shape design and black color