Pretty much everything you need to get your own custom crawler started. The esc and motor is terrific for crawling. Servo is plenty of power and torque that will be needed. The transmitter is very easy to set up and use and is comfortable in the hands. the only thing you need is a battery and charger. NiMh battery works well if you don't want to go LiPo at first. You will also need a suitable body for this chassis. The Volkwagen Amarok, Toyota FJ Cruiser fit perfectly.