Superior large chalk eraser is made with premium felt and cleans up blackboards fast without leaving a scratch. Perfect for large blackboards and high-volume teaching environments. Felt/chamois chalkboard cleaner features six strips of premium quality felt for superior chalk absorption and cleaning power. A rich chamois cover fastens to the back for board cleaning. Wood with a natural finish offers durability and style. Eraser is safe for use on all chalk surfaces. Quartet Deluxe Chamois Chalk Eraser Heavy Use 12 x 2 x 1 5/8