The National-Spencer Do-Zee Model 550 High Pressure Grease Pump is a gear lube hand pump designed for manual operation. Made in the United States, this grease pump is durable and reliable for automotive maintenance tasks. With its high pressure capability, it effectively lubricates gears and moving parts, ensuring smooth operation and preventing wear and tear. This product is a valuable addition to any workshop or garage, providing a convenient and efficient solution for greasing tasks. *Product is new but has a small scratch on the red cover from when it was originally shipped. You can see it in the pictures.