These polystyrene weigh dish facilitates pouring and dispensing. No need to flex dish to dispense liquids or solids; 20-30 percent thicker material for strength, stability, handling ease, and safety. New weigh dishes have a flat bottom and will withstand 200°f. They are disposable, smooth, uniform, and inexpensive. Available in three convenient sizes for any sample handling application. Lets you pour weighed material without flexing dish?no more spills! antistatic polystyrene disposable, manufactured by Cole-Parmer.