Just like polishing your derby axles, you want your derby wheel bore to be smooth and polished to reduce friction on the axle as your wheel turns. The axle and wheel contact point is the biggest source of friction on a derby car. <p><b>Reduce axle-wheel friction and your car will go faster. </b></p><br><p>The<b> PRO Wheel Bore Polishing Kit</b> from Pinewood Pro includes a special plastic polish and cotton spears that are perfectly sized for your derby wheel bore. This process works on all brands of derby wheels because they all have the same bore diameter. </p><p>One end of the cotton spear is stiff so you can chuck it in your drill while the other end is a soft compact cotton swap that is perfectly sized for the derby wheel bore diameter.</p> <br><br><b>How to use the PRO Wheel Bore Polishing Kit</b><br><ol><li> Put some plastic polish on the cotton swab, insert the swab and polish away. <br></li><li> Wash out your wheels thoroughly</li> <li>Apply PRO Graphite to the cotton swab and polish the bore with lubricant to reduce friction exactly where you need it, on the axle wheel surface. Just like polishing your axles, polishing your wheel bore reduces friction increases your car speed.</li></ol><br>Simple, fast and proven to make your car faster! <br><br>Kit includes everything you need including an instruction sheet.<br />Designed and Engineered by the Pro's at Pinewood Pro...helping our customers win races for over 20 years.<br /> <br /> <br /> This product has been tested and passed appropriate CPSIA standards by an independent lab and has received a Children's Product Certificate (CPC). <br /><br /> <b>Made in the USA. Buy American!</b> Pinewood Pro is a US company that has supported the derby racing community for over 20 years. <br />