👉 A pleater is an instrument that is used to create various types of musical instruments, such as guitars, violins, and cellos. It consists of a series of pliers or fingers that are used to press down on the strings or other parts of the instrument to shape them into different shapes and sizes. These pleaters are often used in the context of music making and tuning, where they help musicians create unique and intricate sounds by adjusting the tension and pitch of the strings.