Fiber-reinforced polymer composites are the best at many things because they have high specific strength and modulus. Plastics are reinforced with artificial or natural fibers. Glass, carbon, and other synthetic fibers have long been used in fiber-reinforced plastics. Despite having high specific strengths, glass and other synthetic fiber-reinforced plastics are rarely used due to the high cost of production. For this, researchers have studied roselle, a plentiful natural fiber from India.