Feature: 1. 99.9% Light Blocking: These protective glasses effectively block 99.9% of blue and green light, helping to relax the brain and support deep, restorative sleep. 2. Sleep Aid Glasses: These glasses help support a consistent sleep cycle, promote a healthier lifestyle, and may assist with sleep deprivation and related issues. 3. Blue Light Protection: These blue light blocking glasses provide protection up to 2100nm, helping reduce exposure to artificial light from electronic devices, minimizing eye strain, and supporting overall eye comfort. 4. Suitable for Shift Workers and Travelers: Ideal for individuals with irregular schedules or frequent travelers, these glasses may help regulate sleep patterns and manage the effects of time zone changes. 5. Durable Material: Made from high-quality PC material, these lightweight glasses are durable, resistant to corrosion and aging, and designed for long-term use. Specification: Item Type: Sleep Aid Glasses Material: PC Protective Wavelength: Up to 2100nm Package List: 1 x Protective Glasses 1 x Storage Box 1 x Eyeglass Cloth