SOLD INDIVIDUALLY (2) required per car Injection molded in silicone rubber for higher temperature resistance and long life. “BALL SIDE” lettering shows which direction the seal is to be installed. Keeps dirt out and the grease in around the ball stud bearings. Reference Chrysler part number 2265 942. NOTE: Drop seals in very hot water for a few minutes before you plan to install over ball stud. This makes them pliable and they will slip right on.