U Brands Magnetic Dry Erase Board Eraser, Felt Bottom Surface, 4.5 x 2.25 x 1 Inches Contoured design fits seamlessly in your hand for precise erasing Felt bottom surface easily removes all dry erase ink from any dry erase board Magnetic feature enables to adhere the eraser to any magnetic dry erase board surface Works well on all melamine, painted steel, porcelain, glass and other dry erase surfaces Modern contemporary design