THIS ITEM HAS BEEN UPGRADED AND YOU WILL BE RECEIVING SISP15C BRAND NEW STILL IN THE ORIGINAL PACKAGE. THIS IS THE SLOT IT DIGITAL CHIP IN-CAR MICROPROCESSOR THAT WILL CONVERT A REGULAR 1/32ND SCALE SLOT CAR TO WORK ON YOUR SCALEXTRIC DIGITAL TRACK. PREVIOUSLY YOU HAD TO PURCHASE CARS ALREADY EQUIPPED WITH THIS CHIP FOR THEM TO RUN ON YOUR SCALEXTRIC DIGITAL TRACK BUT NOW YOU CAN CONVERT CARS YOURSELF. THIS KIT IS SET UP FOR THE CONVERSION OF SLOT IT CARS TO RUN ON THE SCALEXTRIC DIGITAL RACE SYSTEM. THE CHIP AVAILABLE HERE IS THE SLOT IT SISP15c (replaces SISP15b) WHICH WILL FIT ALL SLOT IT CARS MADE TO DATE IT ALSO ALLOWS YOU TO ADD LIGHTS AND INSTRUCTIONS INCLUDED FOR SOME SLOT IT AND ALL OTHER CARS YOU WILL NEED TO DRILL A 3MM HOLE AS CLOSE TO THE FRONT GUIDE BLADE AS POSSIBLE TO FIT THE LED EMITTER WHICH ACTUATES THE LANE CHANGE TRACK AND THEN MOUNT THE MICROPROCESSOR BOARD IN THE CHASSIS. YOU WILL NEED TO SOLDER THE WIRE CONNECTIONS FROM THE MICROPROCESSOR TO THE MOTOR. THERE IS DETAILED INSTRUCTIONS IN THE KIT WITH DIAGRAMS TO WALK YOU THROUGH THE PROCESS. BRAND NEW-NEVER USED WITH THE ORIGINAL PACKAGE. FOR OTHER RELATED ITEMS INCLUDING MORE SLOT CARS AND SUPPLIES SEE OUR EBAY STORE. ALL PARTS SHIPPED IN THE UNITED STATES ARE INSURED YOU ONLY PAY SHIPPING FOR THE 1ST PART PURCHASED AND ALL OTHER PARTS HAVE FREE SHIPPING AND YOU CAN EVEN MIX OR MATCH PARTS LIKE TIRES, WHEELS, GEARS AND MORE ................ WILL SHIP WORLDWIDE- WITH A MULTI ITEM SHIPPING DISCOUNT. FREE SHIPPING FOR PARTS WHEN THEY SHIP WITH A LARGER ITEM SUCH AS A CAR OR SET. WE ACCEPT PAYPAL, VISA, MASTERCARD, DISCOVER, AMEX ...................... DISCOUNT ON MULTIPLE ITEMS SHIPPED THE SAME TIME.