This listing is for ONE (1) Empire gray, Marchon MR-1 Racing, Type 3 Revised style CHASSIS. It is an Unused, New-Old-Stock OEM, Factory Service Part. It will run on nearly any HO Scale Electric Race Track from TYCO, Aurora AFX, TOMY, Life-like, Auto World etc. They run strong are similar in performance to a Life-like M-chassis, TYCO Magnum or Tomy Turbo. They run well on cold tracks it will accept a Hornby Micro-scalextric body on top. This chassis should fit underneath most MR-1 bodies, Except Jet Planes or Monster Trucks. Note: Some traction magnets show flaking of the chrome coating. This does not seem to affect performance. ALSO INCLUDED: TUNE UP PARTS; (2) PICK UP SHOES, 1 SPARKER REAR END 1 GUIDE PIN.These are wide window shoes used on the revised chassis (type 3) and alternating current chassis (type 5). They were also used on early Microscalextric MR-1 chassis (type 7). These will not work on the original (type 1), standard (type 2), sound/light (type 4), jet (type 6) or monster truck (type 8) chassis. Sold as is. Buy with confidence please check out my other offbeat slot car related items. I will pack your item(s) well try to ship promptly. Descriptions are very accurate; No Returns. PLEASE ASK BEFORE YOU BUY IF YOU ARE UNSURE. Glad to combine shipping when practical. We ship promptly professionally. We happily combine orders refund any excess s/h immediately upon shipping. We can always provide tracking. ************** From I Only ship U. S. Postal Service PRIORITY MAIL TO THE USA due to previous 'lost' packages. ******************* I charge $2 for expert handling/packaging, actual shipping. I ship out of the country almost daily. Please refer to my feedback, rating or time selling HO slots for assurances of a good honest deal. happy motorin' thanks S'lots from Bob. We Know H.O.