Open top accommodates both spoons and straws as well as enables lid-on soft-serve, shake and shush dispensing. High side walls allow you to over-fill frozen-treat orders. Snap-tight fit minimizes the potential for leakage when using Dart? companion foam cups. Fits: 16-24 oz Dart? Cups; Material(s): Plastic; Color(s): Clear; For Use With: Cold Cups.