Magnetic Whiteboard Eraser performs on all dry-erase surfaces and erases any dry-erase marker ink. It's great for use on all melamine, painted steel, porcelain, glass and other dry-erase board surfaces. Modern, contoured design fits comfortably in the palm of your hand for extremely precise erasing. Eraser also quickly wipes away all dry-erase ink on large writing surfaces. Magnetic feature adheres onto any magnetic dry-erase surface. Felt bottom glides smoothly on board surfaces without damaging it. Use this eraser in any office, classroom, meeting room, boardroom and more.Magnetic Whiteboard Eraser performs on all dry-erase surfaces and erases any dry-erase marker ink. It's great for use on all melamine, painted steel, porcelain, glass and other dry-erase board surfaces. Modern, contoured design fits comfortably in the palm of your hand for extremely precise erasing. Eraser also quickly wipes away all dry-erase ink on large writing surfaces. Magnetic feature adheres onto any magnetic dry-erase surface. Felt bottom glides smoothly on board surfaces without damaging it. Use this eraser in any office, classroom, meeting room, boardroom and more.