This to rent the Canon 5D Mark 3 body only.  This rental is not by the hour, it's by the booking and is for in-studio use only. (If you book a 2 hour lifestyle session, then this $35 rental is good for 2 hours, if you book a 1 hour warehouse session then this rental is good for 1 hour, etc.). 
 
It will come with fully charged battery.  Please keep in mind EF lenses do not work on this camera. Check your lens - if there is a red circle where you screw in the lens, it is compatible. If there is only a white square and no red circle, it isn't compatible.