Stiffness Tester is used to evaluate material stiffness and resiliency. It provides accurate test measurement. It includes paper products, cardboard, plastics, metals, textiles, rubber, wire, tubing, felts and other sheet materials. It incorporated in the Taber Stiffness Tester is a pendulum weighing system. It provides an accurate and responsive method for measuring small load increments, this system is a critical component for determining material stiffness or resiliency. It is a manually operated instrument. It offering the same accurate, precision test results as the digital stiffness tester, this instrument requires the user to record stiffness testing data, average the readings and multiply results by a scaling factor. It allows manufacturers to reduce the amount of material used without reducing performance in corrugated board or boxes.