These items are aluminium medical eye shields, often used post-operatively to protect the eye. 

• Material: Lightweight, perforated aluminum.

• Usage: Designed for temporary protection against accidental injury or rubbing after eye surgery.

医用铝制护眼罩，采用轻质穿孔铝材制成，多用于眼科术后，可临时保护眼部，防止意外磕碰或揉搓造成损伤。（机器翻译）