What is the main feature of a functional grip cane?

The main feature of a functional grip cane is the straight grip handle, which is designed to provide better control for the user. This type of handle allows for a comfortably aligned grip, ensuring that the user can maintain stability and balance while using the cane. A straight grip handle promotes a more natural hand position, which can help reduce strain during use.

Other features like a curved handle are specifically aimed at enhancing the grip but may not offer the same level of control that a straight grip does. A rectangular base is associated with wider protection and stability but does not specifically relate to the functionality of the grip. Lastly, while a lightweight design can certainly make a cane easier to handle, it does not directly impact the core functionality and control provided by the grip itself.