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Editorial Review
Tungsten spheres (also known as BBs), gives you maximum flexibility and precision weighing for your pinewood 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. Note to metallurgists: These spheres are Class 3 tungsten, 95% pure. It is an alloy of 95% pure tungsten, 5% nickel and iron.

Features
1) Tungsten spheres for precision weighting of pinewood derby cars
2) Tungsten is 1.7 denser than lead making it the best weight for placing small amounts of weight in a pinewood derby car
3) Diameter of each sphere is 4.5mm
4) Non-toxic, child-safe for handling

Specification
Binding : Toy
Brand : Pinewood Pro
EAN : 5156648221323
Label : Pinewood Pro
Manufacturer : Pinewood Pro
Model : 021200
PackageDimensions_Weight : 0.05 pounds
PackageDimensions : L:2.50 X W:1.80 X H:0.10
ProductGroup : Toy
ProductTypeName : TOYS_AND_GAMES
Publisher : Pinewood Pro
Studio : Pinewood Pro
Title : Pinewood Derby Weights - Tungsten Spheres by Pinewood Pro