Synthetic slings made of nylon and polyester webbing in order to suit various applications. When choosing a material for sling use we recommend considering a material's resistence to specific chemicals, temperature resistence, and stretch. Warning: Nylon and polyester slings shall not be used at temperatures in excess of 194 degrees Fahrenheit, however, they may be used in temperatures as low as -40 degrees Fahrenheit. Prolonged exposure to ultraviolet rays may cause degradation to the nylon and polyester webbing. Do not exceed rated capacities. Conforms to OSHA and ASME B30.1323