Acrylic, also known as organic glass or PMMA (polymethyl methacrylate), is a transparent, lightweight, and high-strength plastic material. It offers excellent light transmission, weather resistance, impact resistance, and processability, and can be easily dyed and molded. Acrylic is widely used in advertising signage, architectural lighting, home decor, automotive lamp covers, display racks, optical instruments, and crafts, making it an essential high-performance material in modern industry and daily life.