Magnetic eraser offers 3-in-1 cleaning for chalkboards and whiteboards. The felt pad is reversible for 2 cleaning surfaces and a 3rd microfiber surface offers deep cleaning. Eraser features a Spot-Erase Friendly Form. The oblong shape is excellent for spot erasing and successfully reaches into corners. 6-1/2?W x 2?D x 1-3/8?H.