VEXpro 2014 Drive in a Day Chassis Kit and Accessories - VEXpro 217-3648, The VEXpro 2014 FIRST ® Robotics Drive in a Day is a configurable chassis system that produces lightweight, affordable and robust sheet metal drive-trains. With a 0.5in. pitch and a wide variety of mounting holes for motors, gearboxes, and bearings, teams can use the 2014 Drive in a Day to build the drive-train that\'s right for them.The range consists of a 6-piece basic chassis kit to which optional rails and fittings can be added. VEXpro 217-3648 2014 Drive In A Day Chassis Pack (6 pieces)