Night Swannies Swanwick Classic Black Large

- new in box - size large  - please see pic for size of frames  From manufacture's website: - Block 99-100% of blue light in the evening to fall asleep easily. - Get good quality sleep with no tossing and turning at night. - Wake up feeling rested and energized. - Use your electronic devices before bed without them affecting your sleep. - Protects against eye strain. PRODUCT HIGHLIGHTS - BPA-free acetate frames - Flexible spring hinges - Prescription grade CR-39 lens - Calming orange-tinted lens blocks more blue light