This Brookfield Standards Viscosity Fluid set includes two types of fluids, one with a viscosity of 500 and the other with a viscosity of 1000. The fluids are manufactured in the United States and are suitable for use with viscometers and rheometers in medical, lab, and dental settings. These fluids are of high quality and are branded by Brookfield, a trusted name in the industry. They are perfect for those in the business and industrial fields who require accurate and reliable measurements.