The Philips Avent Sip - Grown Up Cup is the ideal transition cup for growing toddlers. The enhanced design uses a lip activated valve that allows your toddler to master free flow drinking while the spoutless, straw-less container allows drinking from all around the rim mirroring an adult style cup. This gently introduces your child to grown up drinking as the spill proof valve prevents mess. The specially designed trainer handles help your toddler hold the cup comfortably. Whether at home or on-the-go, the protective hygiene lid always keeps the cup clean. The cup is made from BPA free material to protect your toddler during the crucial stages of their development.