This is a 1/14 Scale Tractor Truck by Tamiya which is a VERY Scale Kit.  The
semi trailer is Not Included in this kit, but is available separately

FEATURES: 3-speed transmission with constant mesh gears
Metal rail chassis
Scale suspension with heavy duty metal leaf-springs and coil
spring dampers
Propeller-shaft driven rear axles (both axles are used to drive
the truck)
Numerous scale body accessories including metal grab rails and
side mirror supports, metal dual exhaust pipes and chrome plated
parts (grille,fuel tanks, side steps, horns, wipers, visor,
rims, bumpers, light mounts, mirrors and tire guards)
Oilite bearings (bushings)

INCLUDES: Injection molded body (white) and truck interior
10 scale appearance rims and tires
540 motor
Decal sheet (with license plate decal for bumpers)
Mud flaps
Illustrated instructions

REQUIRES: 2 or 4 channel radio (a 4 channel stick radio would allow the
modeler to shift gears" in the 3-speed transmission.  A 2
Channel could be used by leaving the transmission fixed)
Electronic speed control
6-cell flat pack (or 7-cell hump)
Charger for battery pack
Paint

SPECS:    Length: 23.62"
Width:  7.09"
Height: 10.04"
Weight (with radio installed):  approx. 7 lbs
Low (1st) gear ratio:  1:32.49
Middle (2nd) gear ratio:  1:17.66
Top (3rd) gear ratio:  1:10.66