This Side Magnetic Dry Erase Board Eraser performs on all dry-erase surfaces and erases any dry-erase marker ink. Great for use on all melamine, painted steel, porcelain, glass and other dry-erase surfaces. The modern contoured design fits comfortably in the palm of your hand for extremely precise erasing and quick wiping away of all dry-erase ink on large writing surfaces. The magnetic feature on the side enables the eraser to adhere onto any magnetic dry-erase surface. The side magnetic feature also helps keep dry-erase residue from building up over time which helps to extend the life of the eraser. Equipped with thicker felt for better function and performance. The thick felt bottom surface of the eraser glides smoothly on any dry-erase board surface, without damaging the writing surface. Ideal for use in the office, classroom, meeting room, boardroom and more. Board Eraser Application: All Dry Erase Eraser Pad Material: Felt Eraser Width: 5" Eraser Depth: 2".