Visual Scientifics Replacement Steel Ball, 3/4" (0.750) 19mm

Visual Scientifics large replacement ball is used in laboratory experiments and demonstrations, and is versatile for use with the PT2SCO collisions in 2D, PTLOP loop kit, and PTPROJ launcher. The ball can be used as a projectile, or in free fall or ramp experiments. The ball is made of durable steel, which is a good general-purpose material, with better weldability and increased rust resistance over wrought iron. The ball is suitable for high school and college students, or ages 14 to 21. Steel ball measures 3/4" (0.750" or 19mm) Diameter