The Castrol Fifth Wheel Grease NLGI 2 8oz Tube is a pack of one heavy-duty grease designed for trailer hitches, semi-trucks, and RVs. Made by Castrol, this grease is manufactured in the United States and is suitable for high-pressure applications. With a volume of 8oz, this grease is ideal for lubricating and protecting the fifth wheel and trailer components, ensuring smooth and reliable operation on the road.