Quartet Deluxe Scofoam Chalk Eraser, 18 x 2 x 2 Inches, Suede Grip, Tan and Black (ESC18) Soft, suede-gripped eraser with urethane foam for superior chalk absorption and cleaning power Safe for daily use on all chalkboard surfaces to eliminate need for frequent board washing Ideal for heavy-use classroom environments and large writing surfaces Features durable wood construction in the handle Large 18 x 2 x 2 inch size