Product Description【3-in-1 Design】: The whiteboard pens are designed with magnets, you can easily and efficiently remove writing/drawing, the fine tip pen (1-2 mm) rolls smoothly on most smooth surfaces such as whiteboards. Smooth and clear. Whiteboard pens with eraser can also be attached to whiteboards, refrigerators or metal surfaces, very easy to use and store【Wide Range of Uses】: Set of 20 classic whiteboard pens, the highly pigmented ink is bright and vibrant, can be seen clearly even from a distance. Whiteboard pens can be used in various ways such as whiteboards, blackboards, windows, bistros, glass, porcelain, etc. Whiteboard pens are ideal for schools and offices【Easy to Wipe】: The whiteboard pens with eraser design with magnets help the whiteboard pen stick to the whiteboard surface. It also allows the chalk pens to sit directly on the refrigerator and never disappear. The medallion on black whiteboard pens contains a small eraser for easy cleaning, helps keep your whiteboard clean, save space and remove writing marks. 【High Quality】: Whiteboard pens and erasers use the unique ink formula, non-toxic, low odor, harmless. Dries quickly after writing, no ink bleeding, no smudges on the page. Whiteboard pens and eraser set are great for everything from household schedules and chores to home office messages, classroom learning or business presentations. 【Double-bar pen size】: 11.3 * 1 cm, 20 erasers, enough for you to use and replace conveniently.