Rubbermaid Juice Box, Litterless, Sipp'N Serve 8.5 Oz / 250 Ml (Pack of 4) Pack of 4, 8.5 oz each Its patented sipping spout offers comfortable, easy drinking.. The straws snap tight for a leak-resistant fit. Patented sipping spout offers comfortable, easy drinking Straws snap tight for a leak-resistant fit Freezer and top rack dishwasher safe