The magnet is strong enough to make it can stick to metal surfaces easily like metal whiteboard, chalkboard, cabinets and so on with back,, non toxic, and can last for a long time use The pencil holder can be widely used in, school or home, to creat a clean and orderly environment Simplistic and elegant design, color and complement any modern work space, and help you save space Large enough to store all kinds of stuff, like keys, pen, makeup brush, hair, ruler, whiteboard pen, eraser, chalk