The diameter of the inner disc is 5cm, and the length of the straw is about 15cm. If there are too many circles in the bottle, a small section can be cut as appropriate, which does not affect the use effect.
Product features: the bottle with a suitable straw, no need to raise the bottle, standing, sitting, lying, any position can drink milk, can exercise the baby sucking, improve vital capacity, and can reduce the baby breathing air, vomiting, hiccups and choking milk and other phenomena.