Dimensions: 4 inches x 3 inchesPackage quantity: a set of 20 mini blackboard signs, 2 chalk marker and 2 cleaning clothEasy to write and erase: The mini blackboard can be erased and reusedSturdy Material: Our mini chalkboards are made of food friendly and safety deep matte black plasticSuitable for the scene: These mini chalkboard signs are perfect for weddings, parties, and special events. Use them as wedding signs, table numbers, name tags, place cards, plant decorative signs, food labels, and so on