Features: 1. A gravity conveyor roller is a simple, reliable device. 2. It is cheaper than other powered roller, it doesn't need a drvie device when assembling. 3. The conveyor made by gravity rollers is automated. 4.Gravity roller conveyors allow cartons to be easily stopped or started without complex mechanisms. 5. Gravity roller conveyors cannot convey loose powders and cannot convey the goods uphill. 6. Gravity conveyor roller can be made in many different meterial, such as Galvanized steel, Stainless steel, Aluminum alloy etc.