The nosepad is manually adjusted by the optician to fit the shape of the nose. Once set, it does not return elastic energy (“no energy return”), ensuring a stable position over time.

Yes. It has no removable or mechanical parts, does not break easily, and does not risk detaching. It is made from sustainable materials and tested to ensure durability and comfort.

Only the optician. The mechanism is designed to be child-resistant, meaning that it cannot be modified by children, ensuring safety and stability of use.