I designed a set of small household appliances placed on the desktop, including nightlight, fan, humidifier and sound box. The design inspiration of this set of products comes from the design element of "circle" in geometry, so it uses sphere, semicircle, cone and frustum. A circle is a shape that looks simple, but is actually a very wonderful shape. The ancient people first got the concept of circle from the sun and the moon on the fifteenth of the lunar calendar. "Da Dai Li Ji · Zeng Zi Tian Yuan" records that "the way of heaven is circle, and the tunnel is square." Structurally, the geometric cutting method is used to make its shape more unique. In terms of materials, there are two matching methods, one is the matching of wood materials and plastic materials; the other is the matching of metal materials and plastic materials, which has the natural beauty of native nature and high-end simplicity and fashion. The characteristics of metal, wood and plastic materials are skillfully used. There are rich choices in color, crescent white, girl pink mint green and jingde blue. As "color" means, it is fascinated by "color.