Usually refers to the shells of marine snails, which are loved by people for their unique shape and beautiful texture. The size, shape, and color vary, with some shells having smooth surfaces and others having rough textures or nodules. It also holds a unique position in culture and history. In ancient times, snail shells were used as horns or musical instruments in some cultures, while in other cultures they were used as decorative or ceremonial objects. In modern times, conch shells are often used to make various handicrafts such as jewelry, wind chimes, and other decorations. It also has ecological functions in nature. Some marine creatures, such as hermit crabs, use empty snail shells as a home to protect themselves