The basic feeding bottle from ChuChu Baby Brand. A cute and chubby penguin featuring ChuChu Baby"s main character is shown at the lower part of the bottle. Super Cross Cut Hole TechnologyFWorld-wide patents applied. This adaptive structure maintains a suitable hole size that may be used until weaning. The super cross cut hole is usually closed, but only opened by the baby"s suction and teething power. It will not leak even if bottle tips over. Because ChuChu Baby"s teat resembles mom"s breasts, it can make an adj