This is the Mac-Daddy of all warmers! The Pro-Line model is Temperature Adjustable with a Digital Display that shows the actual tire temperature while the warmer runs.  Temperature set point is changed with the push of a button- Range up to 212 degrees F.  All the other features of our warmers plus the most accurate and easiest temperature control of all!   Front is 110-120 17". Rear will fit up to 190 tire.