Zu: / Nipple for baby

Generally, nipples have no caps, even have it, they're separative each other. There is a problem(insanitary) when people lost caps.
‘Zu:’ is designed to solve this problem by silicone rubber. This case protects inside of that, and it can be turn the other side for using it. Babies can feel mother's bust when they hold it because of circular shape.
A meaning of 'Zu:' is started from a baby's language such as 'mama, jju-jju'. And also, sound of 'Zu:' looks like a zoo that baby likes very much space. So we design it like a cute bear.