Chairs are common pieces of furniture designed for sitting. They usually have a seat, backrest, and sometimes armrests. Chairs can be made from various materials like wood, metal, or plastic, and they come in many styles, from simple stools to elegant armchairs. They are found in homes, offices, and public spaces, providing comfort and support. Different types of chairs serve various purposes. For example, a dining chair is designed for use at a table, while a recliner offers relaxation with its adjustable backrest. Some chairs are even designed for specific activities, like office chairs that promote good posture during long hours of work.