A polypropylene chair is a type of chair designed with a seat and backrest made from polypropylene, a strong thermoplastic polymer. Polypropylene chairs are lightweight, durable, and often stackable, making them ideal for commercial and residential use. They can be found in various colors, styles, and shapes and are commonly used in classrooms, offices, outdoor events, and indoor dining areas. Polypropylene chairs are also easy to clean, resistant to scratches and stains, and some models are UV-resistant, making them suitable for outdoor use.