After Qianlong in Qing Dynasty, the technology of making buttons became more and more exquisite, and the buttons of clothes became more and more exquisite. The buttons on clothes in Qing dynasty were mostly small round buttons made of copper, the big ones were like hazelnuts and the small ones were like beans. People use plain noodles, that is, the surface is smooth and grain-free, and the court or nobles use big copper buttons, copper-plated gold buttons and silver buttons.