Features: Soft Flexible Cube Cute Colored Pencil Rubber Erasers: Wipe clean, neat, soft edges, adding comfort wipe Material: Rubber. Good quality, to use Application: Mainly applicable to Class B pencil hardness and other mechanical pencil writing Suitable for: for children for school usage, Sketching, drawing, art, general home and office use Service Garantee: Any problem about our product or services, please leave message to us