Conveyor Flow Rail/Roller Track Diameter of the wheel: 33mm Material: frame-iron sheet(steel) wheel-PP Conveyor Flow Rail/Roller TrackDiameter of the wheel: 33mmMaterial: frame-iron sheet(steel) wheel-PPSpecification: base-35.6mm, the height of the frame-27.4mm, total height-36mmMore details, please feel free to contact us! Conveyor Roller Track/Flow Rail