1Spring hinge, light pressure, fits to the skin without causing pressure on the skin, can adapt to the wearing requirements of different face shapes. 2Vacuum plating process, pure and bright colors, not easy to fade, stylish and beautiful appearance. 3Silicone nose pads, healthy and ecofriendly materials, can adapt to different nose shapes, reduce the burden on bridge of the nose without causing damage to the skin. 4Folding structure design, small and exquisite, safe to use, easy to store and carry, suitable for different occasion. 5Stainless steel frame, retractable glasses leg. Specially designed for the elderly, help them see things more clearly.