Check the listing for details. Replacement Ball, 0.75" - Steel Ball - Visual Scientifics by Eisco. Condition: New. Listed at 11.99 USD. Replacement Ball, 0.75" - Steel Ball - Visual Scientifics by Eisco Replacement ball for use with Visual Scientifics experiment systems, and useful for many other laboratory demonstrations. Includes one steel ball measuring 0.75". This replacement ball is particularly useful in Visual Scientifics PT2SCO collisions in 2D, PTLOP loop kit, and PTPROJ launcher. The ball can be used for free-fall experiments, as a projectile, or in free fall and ramps. Suitable for high school and college students, or ages 14 to 21. Product Details BrandEiscoProduct TypePhysics Science KitsMpnPHVSLBALL Replacement ball for use with Visual Scientifics experiment systemsUseful for many laboratory demonstrationsIncludes one steel ballMeasures 0.75" Check out my other items. -Powered by