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Pack of 5 ball bearings. Each ball measures 25mm 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. Varying sizes available (Eisco PH0203).Eisco Labs proudly manufactures its own products using state-of-the-art equipment, and following the highest standards of quality control.Each product is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. They are manufactured with only the highest grade, raw materials and according to international quality standards to ensure that they can withstand use in even the toughest laboratory environments.
