The PTSBALL Visual Scientifics Replacement Steel Ball, Small
Visual Scientifics small replacement ball is used in laboratory experiments, 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.
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