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Pinewood Pro Weight for Pinewood Derby |Tungsten Spheres - Incrementally Adjust Weight - Fine Tuning
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About Pinewood Pro Weight For Pinewood Derby |Tungsten
Tungsten spheres (also known as BBs), gives you maximum flexibility and precision weighing for your pine wood derby car. Tungsten is 1.7x denser than lead and 2.7x denser than zinc, so you can put more weight in a smaller area, exactly where you need it on your car to maximize inertia and speed to the finish line. Tungsten is non-toxic, child-safe for handling Package contains 33 BBs totaling a weight of 1 Ounce Diameter of each sphere is 4.5mm Each sphere weighs .032 oz (.9g) Note to metallurgists: These spheres are Class 3 tungsten, 95% pure. It is an alloy of 95% pure tungsten, 5% nickel and iron. This product has been tested and passed appropriate CPSIA standards by an independent lab and has received a Children's Product Certificate (CPC). BUY AMERICAN! Pinewood Pro is a US company that has supported the derby car racing community for over 20 years.
