The Lumax grease gun is a high-pressure manual grease gun with a 14oz. cartridge capacity and a maximum pressure of 10,000 PSI. Made by Lumax, this product is designed for automotive use and is equipped with a handle for easy application. It is important to note that this product carries a California Prop 65 Warning due to the presence of chemicals, including lead, which are known to cause cancer and birth defects or other reproductive harm. Please consult the manufacturer's website for more information on this warning.