Introducing the squishiest, stretchiest gooiest superheroes ever! Use these Marvel Superheroes to defeat evil and save the day! Your Heroes of Goo Jit Zu Captain America is filled with a thick and oozy blue gel. Stretch him as far as you can, see his insides glow then watch as he returns to his original form! Suitable from 4 years. Warning! Choking Hazard. Not suitable for children under 36 months. Choking Hazard (small parts).