DescriptionThis is a set of chalk covers, made of high-grade plastic materials, safe and durable, and can be used with confidence. Small and light, convenient to carry and store, and will not take up too much space. It is perfect classroom supplies.Features-Color: Red, blue, green, yellow. -Material: Plastic. -Size: About 9.50X2.50X2.50cm/ 3.73X0.98X0.98inch. -Made of high-class plastic, practical and durable, it can serve you for a long time. -This protective cover can keep your hands clean and prevent the chalk from being broken. -Magnetic design, can be directly attached to the blackboard or whiteboard when not in use, bringing you great convenience. -It is very suitable for school, office or home use. It is a good assistant when you write on the blackboard. -This practical protective cover can reduce the pollution of chalk opponents and clothes.