THE TREAD OF THE LEFT REAR TIRE COMPLETELY SEPERATED FROM THE TIRE. THE LEFT REAR TIRE LOOKED LIKE A DONUT. THE CAR FISHTAILED, ROLLED OVER SEVERAL TIMES AND CAME TO A REST UPSIDE DOWN ON THE SHOULDER OF THE HIGHWAY. (TIRESIZE: 23575R15)( DOT NUMBER: TIRE SIZE: 23575R15 )