Historic Timekeepers concentrated cleaning solution has been highly recommended by authority Roy Hovey. Quickly dissolves dried-on dirt and lubricants with no unpleasant odors. One pint makes about 1 gallon (approximately 7 parts water to 1 part cleaning solution). Rinse with water. One gallon plastic container. There is NO hazardous material shipping charge. Made in the USA. A Timesavers exclusive!