The Center of Gravity Stand is made from poplar wood and features the Pinewood Derby's required measurements etched right into the stand, so it is easy to check your specs. For more information and tips on potential energy and center of gravity, check out the Pinewood Derby Speed Secrets book (30538, sold separately).
WARNING: Choking hazard! Small parts. Not intended for children under 3 yrs. Recommended usage, children 5+.