Integy, super class size 1/8 scale, all metal gears, welded steel rock cage with matte balck coating, large vol. shocks with external oil reservoir, locked differential spool for max. rock crawling capability, huge off-road climbing tires are included, 40 size wheels, multi suspension links provide endless setup possibility, narrow track width setup, 23mm wheel hex adapter, requires radio and electronics, servo saver/horn(s) are not included, can be setup using one front steering servo, can also be setup as 4WS using two steering servos, high torque servo with 250oz-in to 350oz-in is highly recommended, use a Y-servo adapter cable with reverse for 4WS operation for 2-CH operation or use a 4-CH radio system, this pro kit is partial pre-built, expert level building skill is necessary to complete this model, use tiny amount of thread lock on screws to prevent the screws from backing out.