Large weigh boats have dimensions of 5.5 x 5.5 inches square x 0.875 inches high. Disposable, lightweight, with a stable flat bottom and turned gripping edge. These weighing dishes are easier to manipulate than unwieldy weighing papers or heavy glass or porcelain labware. Thin, no-wetting polystyrene is unaffected by inorganic solutions and is ideal for handling dry or liquid samples.They are flexible and can be squeezed to control pour out. Polystyrene. Square. Size: 5.5 x 5.5 inches square x 0.875 inches high. 250/Pack. 2Packs/Case. Dyn-A-Med