Learning to swim encourages the psycho-motor development of young kids.
Nabaiji offers three experiences: Discovering the water, Discovering swimming and Discovering underwater.
The weighted rings are part of the "Discovering underwater" experience: The child discovers the experience of going underwater and will gradually progress in learning by attaining a goal.
At his pace and according to his progress, the child will recover the items. A fun way to experience diving and go beyond one's limits.