Solar Dolly itself, not kit!per website:Put your solar system on wheels! This helpful dolly is designed with an adjustable pitch top for mounting your solar panel. The angle of the panel can be easily adjusted for your location. The Solar DollyTM is made from steel with a yellow chromate finish and features 8" semi-pneumatic tires for easy travel over rough ground. The controller and energizer are protected from the rain and sun thanks to mounting brackets underneath the solar panel. The 7.75" x 13" battery compartment can house a deep cycle marine battery (sold separately) and a compass is included for proper orientation of the panel. Made in USA. Free Shipping!