This is a Set of 2oz Round Weights for Pinewood Derby Cars from Pine Car. The heavier your car, the faster it goes. Incremental weights allow you to adjust you car's weight, even on race day. Drill 3/8" (9.5mm) diameter hole in the car and install the weight. Carded packaging with instructions on rear. One Set of 2oz Round Weights for Pinewood Derby Cars. Pliers Length: 2-1/2" (64mm) Width: 1" (25mm) Weight: 2oz (56.7g) Pine Car has a full line of Pinewood Derby cars and accessories. sdw 9/7/01 ir/kh &