Chalkboard/whiteboard cleaner features a nonammoniated formula that safely removes dust and marker residue to give surfaces a ""like new"" look. High-foaming formula clings to vertical surfaces to eliminate drippy messes. Unique, 360-degree valve allows you to conveniently spray in any position for easy application. Chalkboard/whiteboard cleaner is perfect for use in schools, hotels, motels, offices and more.