Shape round ,square Color Black Size 75mm to 500 mm Packaging Type corrugated box Temperature 40 deg c Weighing bellows are for the flexible connection of mixers, feeders or vessels on weighing cells to supply lines, drain pipes or other forms of air transport or powder transport. Silicones are well known for the supple and flexible properties. These flexible connections produce little to no reactive force and therefore do not influence the weighing.