Material: the product is made of EVA material, magnet and felt fabric (3 layers of processing), so you can be relieved when using it, and it can stick to metal chalkboard and white board because of the soft magnetic .Large amount: there are 48 pieces office erasers, a large quantity that is wonderful for you to use a long time, you will get 4 colors from this package, red, yellow, blue and green, use different color as you like .Cute design: this magnetic small eraser is designed as a bone shape, which is cute, appear for the child to use them, this kind of dog bone shape is also convenient for you to hold in hand and agile to operate .Small size: the dimension of this product is 2.76 x 1.57 x 0.59 inch, it is a little one but right there for kids, students and teachers, easily to hold for small hands When you wash it, a little soap is enough, dry fast placed in the air .