Elvie Stride Reusable Cups (set of two).Discreet, reusable cups collect your breast milk in-bra while using Elvie Stride. Each Cup can hold up to 150 ml/5 oz. of breast milk, which is then poured easily into your preferred storage container by removing the Stopper. Breast shields are sold separately. BPA free and dishwasher safe. Includes: – 2 Cup Fronts – 2 Cup Bands/Seals – 2 Stoppers