This is brand new,10,000 rpm,,old school style chrome plated sunpro super tachometer,,it measures 5'' diameter and is about 4 and 5/8 deep,,it works with most any car/truck with a 12 volt negative system,,works with 4-6-8 cylinder engines,,it has a mounting tab for mounting on top of/or below dash,or on steering column/etc/etc,,comes with instructions,,,,,,,,,,,,,,,,,,,.AS WITH ALL MY ITEMS,ITS HERE,IN MY HANDS,AND WILL SHIP AS SOON AS PAYMENT IS RECEIVED., SHIPING IS free IN THE 50 STATES ONLY,.PAYMENT BY PAYPAL .PLEASE MAKE PAYMENT WITHIN 3 DAYS FROM THE CLOSE OF AUCTION..PLEASE ASK ANY QUESTIONS THAT YOU MIGHT HAVE,,,THANKS FOR LOOKING,