Wheel conveyors and Roller conveyors offer the simplest and most economical means for handling light loads. Since they are light in weight and easy to handle, these conveyors are extremely portable, ideal for temporary lines in loading docks, rail cars, trucks, etc. Light duty wheel and roller conveyors are equally efficient when permanently installed, either used alone or as part of a complete engineered system, as in live storage, order picking and packing lines. Accessories include fixed and adjustable guard rails, switches, spurs, stops, gate sections, and various types of permanent and portable supports.