Feature

●Tungsten spheres for precision weighting of wood derby cars
●Tungsten is 1.7 denser than lead making it the best weight for placing small amounts of weight in a pine derby car
●Diameter of each sphere is 4.5mm
●Non-toxic, child-safe for handling


Description

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 Childrens Product Certificate (CPC).

BUY AMERICAN! Pinewood Pro is a US company that has supported the derby car racing community for over 20 years.