Pinewood Derby Tuning Set
The easy, all-in-one way to stay "in tune!" Why buy all your Pinewood Derby® tuning tools individually? This handy Tuning Set has what you need to get the best possible performance out of your Pinewood Derby® racer. The Wheel Truing Mandrel helps you make your wheels as perfectly round as they can be. And with the 600-grit sandpaper and Graphite Powder, you can polish your axles to mirror smoothness to minimize friction - and maximize speed! Adult supervision recommended.