HANI Helmet(Orthopedics appliance) is medical device that helps deformed head shape recovered close to the normal shape when a baby between 3 months and 18 month old who has an asymmetric or deformed head shape such as Plagiocephaly and Brachycephaly wears it for 3~4 months. The outer part of the HANI helmet is made up of hard polypropylene, and inside it is made up of polyethylene foam that can be pressed while reducing skin damage. Each of these products is tailored to fit the head of an infant.