Rubber ball used for dynamic stability testing to UL (USA) standards.
A ball, 2 and 3/4/16 inch diameter (2.187 inches), filled with No. 60 core sand. It is suspended on a cord and allowed to swing as a pendulum to strike a surface. It is used for dynamic stability testing.
- Diameter – 2.187 inches (56mm)
- Weight – 0.33 lbs. (149 grams)