Small parts. Not intended for children under 3 years. Adult supervision required.
enfants de moins de 3 ans. Supervision d’un adulte requise.
The P3969 weighs 1.35 oz +/-.
The 3 oz weights would bring one car block up to 4.35 oz +/-. However, you need to figure in the weight of wheels, axles, paint, etc. There are variances in these items, so it is difficult to determine the exact weight of a car until it is assembled.