TPX plastic ball is the lightest plastic ball among all solid plastic balls, with a specific gravity of about 0.83, which is even lighter than the specific gravity of plastic PP balls. TPX plastic balls have excellent characteristics such as high temperature resistance, clarity and transparency, high melting point, chemical resistance, acid resistance, alcohol resistance, and impact resistance. Plastic TPX balls can withstand high temperatures above 150 degrees Celsius, and can be used continuously for more than 4 days at a high temperature of 180 degrees Celsius. Their chemical resistance is better than that of PP plastic balls. TPX plastic ball materials are environmentally friendly and safe, Compliant with FDA certification in the United States, TPX plastic balls also have good light transmittance. Some customers have used TPX plastic balls on Longbo lenses, achieving good results.