This is a set of two Pro-Line Maxx Paddle Tires.  These fit standard T-Maxx (not 3.3), E-Maxx, Savage, LST (original), and MGT wheels.  These tires include the foam inserts.  These tires are awesome for running on sand, snow, etc.  The paddle tires make your truck look cool too.  If you need a full set of four tires, purchase a quantity of "2" packages of these tires.