Child and mother buttons, also known as buttons or embedded buttons, are components that involve temporary connections and positioning of clothing and other similar objects. Disposable snap fastener, the female and male buttons are still composed of the female and male embedded parts and their respective riveted parts after riveting. However, in the female button, the inner flange of the circumferential embedded part of the female embedded part is evenly equipped with intermittent grooves, and there is an intermittent arc shaped groove on the outer circumference of the mouth. The back of the groove where the gap occurs is a reinforced rib structure. Good usability, uniform and consistent fit tightness, not affected by other factors such as clothing thickness. In addition to buttons and embedded buttons, the parent-child should also include hand piercing needles, hanging rings, etc. Hand piercing needles are made of PP material through plastic molds and are widely used in industries such as clothing, footwear, handbags, gifts, etc. Its main function is to hang hanging tags, etc. Its structure is divided into a head and a tail, also known as a common and female. The head is divided into a triangular shape and a circular shape, and the tail (i.e. the end with a hole) is divided into a cylindrical shape and a frustum shape.