Pinewood Car Derby Weights 4 OZ 3 Size Cylindrical Tungsten Weights & Putty Kit with Case to Speed Up Your Car (4OZ-11P)

After finding out my daughters were entering a pinewood derby race, I did a bunch of research to find out how to make them fast. A weight kit was ranked high on the list. I took a shot with this one and found it to be perfect for our needs. I liked that it had a case with various size weights and then some weighted putty for when you just need a SMIDGE more weight. We were ablf to win quite a few races our first time out. I believe these weights, the graphite powder and a raised 3rd wheel were the biggest factors to going fast.