Convenient eraser

The utility model discloses a convenient eraser which is simple in structure and reasonable in design, the convenient eraser is combined with an express waybill into a whole through an adhesive, the convenient eraser is convenient to take and use through a sawtooth-shaped edge, acting force is applied to a groove through a finger, so that a convex body rubs handwriting information of the express waybill, and the express waybill is convenient to use. The handwriting information is cleared by using a chemical reagent and a friction heat generation principle, and the use process is relatively convenient and rapid. 本实用新型公开了一种便利擦，本实用新型结构简单，设计合理，所述便利擦通过粘合剂与快递单结合为一体，所述锯齿形边缘便于便利擦的取用，通过手指对凹槽施加作用力，使得凸体对快递单字迹信息进行摩擦，利用化学试剂及摩擦生热原理完成对字迹信息的清除，使用过程较为方便快捷。