Vented design keeps beverages hot but allows steam to escape, preventing a condensation related watered-down taste. Flat face enables space saving storage and dispensing. Secure fit rim keeps liquids from leaking. Fits: 1014 oz. foam cups, material(s): Foam, color(s): White, for use with: DART 1012 oz. small drink cups, DART 14 oz. big drink cups, DART 12 oz. thermalize cups.