Description
Tungsten spheres (also known as BBs), gives you maximum flexibility and precision weighing for your pinewood derby car.
There are 33 spheres in each bag.
The diameter of each sphere is 4.5mm and weighs .032 oz (.9g)
This product has been tested by an independent lab and was issued a Children's Product Certificate by passing appropriate Consumer Product Safety Improvement Act (CPSIA) tests.
Product Code: 021200
