SecureSmarty Impossible Screen Guard for VIVO X21(Pack of 1)
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ANTI BLUE LIGHT:REDUCTION IN BLUE LIGHT RAYS Ultra 99% Transparent, 99% Accurate Touch Screen: Touch, Sensitive Response.Designed for you Eye's Health, Anti-Blue Light Filter Flexible Impossible Guard prevent your Eye Retain from eye fatigue causing by Blue Ray from cell phone screen. Assist you to have a better sleep since it could soften screen's light and comfort your eyes.