This is the perfect weight for Pinewood Car Derby cars. Tungsten is a highly dense material which is almost as dense as pure gold. Tungsten is 1.7 times more dense than lead and 2.7 times as dense as zinc.

When you have a wafer thin car or are just trying to push your weight farther to the rear of the car, Tungsten is the ticket!

Each Derby Champ Tungsten Round weighs 3 oz (measuring 1.125 " Diameter x 0.28 " Thick)