Abstract: A trolley is provided for storing and transporting components. The trolley has a frame and a cover that can open or close. The frame has a base, rollers mounted on the bottom of the base, vertical supports extending from the top of the base, and one or more pairs of rails mounted in between adjacent vertical supports, each pair of rails being adapted to receive and support said components. The cover has a first side support that is hingeably mounted to the frame, a second side support, and cross members substantially parallel to one another and horizontally spaced apart, mounted between the first side support and the second side support. When the cover is open, components may be loaded by sliding them along a pair of rails or by lowering the components between a pair of rails. When the cover closed, loaded components are constrained from movement.