Item #: DWXUL01
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FeaturesThe Pro Ultra-Lites weigh in at 1g each with 100s of hours of testing on the Derby Worx track. You can be assured these are not just any lightened and weakened one race wonders. Recommended for pinewood derby races with minimal restrictions on wheels. Rules must allow for lightened wheels and the markings removed from the interior of the wheel. Check your local rules to see what wheels are permitted.