Learn to Sip with Less Mess: This clever open cup is made for practicing careful sips with your toddler as they make the transition from bottles and sippy cups to open big kid cups Spill Control: The removable spill control insert allows just the right amount of liquid out for easy practice sips, letting your toddler know if the cup tips too far when a small amount of liquid spills out 2 Toddler Cups in 1: After your child has mastered sipping, remove the spill control insert to use it as a big kid's open cup : Easy to Clean: Training cup insert and open cup are both top rack dishwasher safe for hassle-free cleaning Non Toxic Baby Cups: My First Open Cup are made without BPA for toddlers ages 12 months and up