Traxxas 9811-BLUE TRX-4M Chevrolet K10 Blue Body Associated Parts and the pre-mounted option means

and the pre-mounted option means they are ready to install when you pull the tires out of the package

Traxxas 3663-WHT White Monster Truck Wheels & Terra Groove Tires (2)

4volt battery pack & compatible charger

restoring your truck's original front lighting and scale detail

Advanced X2S³ Compound

Traxxas 9811-BLUE TRX-4M Chevrolet K10 Blue Body Associated Parts and the pre-mounted option meansTRX 4M High Trail Edition clipless body, ready to mount right out of the bag. Constructed of tough ABS plastic, faithfully capturing the full size 1979 Chevrolet K10 in 1 18 scale. Includes grille, side mirrors, door handles, roll bar, windshield wipers Clipless mounting Blue finish Fits: TRX 4M High Trail extended wheelbase chassis (requires #9835 front & rear bumpers). Does not fit standard TRX 4M.