Three clear vials with light blue cap; containing 1.5 mg each of polystyrene at Mp 66.0K, 15.7K, 3.47K, 0.474K Three clear vials with red caps containing 1.5 mg each of polystyrene at Mp 130K, 21.5K, 6.54K, 1.25K Three clear vials with white cap containing 1.5