This option is for those who want us to prep there tires for there specific track type. We will prep 1 full set of tires for you. Prep is included in this price. If shipping is needed that will be paid by the customer. (specify track type and average temp when ordering) For internal prepping the price is 35.00 For internal and external price is 45.00 These services are for 1 set ready to go for one day of racing if you need weekly prep service a discount is available, please call for inquires 402-714-1088