This series of buttons are made of resin material. Compared with other materials, the surface finish of buttons made of resin material will be higher, and the product has good flexibility, corrosion resistance, resistance to High and low temperature resistance, the service life of the product will be longer. In this series of buttons, the white button is very prominent. This button adopts a black and white decorative design. Black is like an ink dotted with a white button, making the button more perfect.