You are bidding on a TWELVE (12) Piece, Aurora Plastics Co. HO Slot Car, Medium-SLIM REAR Tires (8741) Medium Rear Wheel (8740) Assortment. The SIX (6) Wheels (6) Tires, Can be used stock in most, Aurora AFX 4-Gear, Specialty Magnatraction Chassis. They also Work Beautifully on a WIDE RANGE OF MODS PRO MOD Applications! Incredible to find as new old stock after so many years, They are Vintage, Original Equipment Manufactured Unused. Clean Sticky Tires! Great Fun to use! NOTE: Close approximation of the size of the Aurora #8741 rear tire; Inside diameter is 9mm (.35in), Outside diameter is 12.5mm (.5in), Tread thickness is 1.75mm (.07in), Depth of the tire is 6.5mm (.25in). Sold as is. Descriptions are very accurate; No Returns. PLEASE ASK QUESTIONS BEFORE YOU BUY IF YOU ARE UNSURE. We ship promptly professionally. We happily combine orders refund any excess s/h immediately upon shipping. We can always provide tracking. I charge $1 for expert handling/packaging, actual shipping. We ship out of the country almost daily. Please refer to our feedback, social media or time selling HO slot cars for assurances of a good honest deal. Happy motorin' thanks S'lots from Bob at Slot Car Central in SYR. We Know H.O.