About this item Dustproof eraser: this microfiber chalk eraser is noiseless and dustless while cleaning the chalkboard, you don't need to worry about dust, indoor air can also be kept clean Soft and skin-friendly: these chalkboard erasers are made of fleece, a type of microfiber; Durable and reliable, delicate texture, soft feel, not easy to fade or wear, nice water absorption performance Easily to grip: each reusable chalk eraser measures approx. 5.2 x 3 inch, the weight of it is 0.7 ounces, practical and lightweight design, suitable for both adults and children Washable and reusable: the fleece section can be easily removed, and can throw it in washing machine; There is a round magnet on the back of the microfiber chalk eraser, which can be attached to any magnetic or metal surface, it can be easily found when needed Wide application: the whiteboard eraser is a practical helper in a variety of occasions, such as home, office meeting, school meeting, classroom, game room, play centers, etc., can easily erase the handwriting on the whiteboard, provide convenience for people to writing on dry erase board