Nuby 4-Pack Stackable Wash or Toss Straw Cups Durable enough to use again and again, affordable enough to be disposable Engineered to make feeding and handling easier - perfect for beginners and convenient for parents Free Flow hard straw is durable while the cup's contoured base is easy for little hands to hold Cups stack inside each other, saving storage space when not in use 12 Months + / BPA Free