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Pack of 10 ball bearings. Each ball measures 19mm in diameter. Made of high quality steel. Built to last. Great for a wide variety of physics experiments and for demonstrating mechanics, including kinetic and potential energy, velocity, energy conservation, momentum, collisions, inertia, friction and density/mass. Perfect for use with projectile launchers, roller coaster simulations, collision simulations, ballistic pendulums, second law of motion apparatuses and inertia demonstration apparatuses. Designed for use in a science laboratory, but also great for various uses around the home.
Started over 50 years ago as a small, family-owned manufacturing company, Eisco now produces over 6,500 product lines for the science education and scientific research markets. They have headquarters in both India and the US, and serve hundreds of distributors around the world.
Their core products include glassware, physics apparatus, biology models & equipment, and chemistry lab supplies. Products are designed by a team of laboratory professionals and engineers with quality and durability in mind.