Easy to use: The writings on each blackboard signboard can be erased with water. The mini blackboard signs for food are safe and , and the black background ensures a with white or colored writing, making these buffet tags clearly visible from the distance.Applicable occasions: These PVC erasable blackboards are suitable as wedding , name tags, preference tags, location cards, table numbers, food and beverage labels for , restaurants, coffee shops, etc.colour: blackMaterial: PVCSize: 100x76mmPackage Contents:20 x Chalkboards2 x White markersOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.