Red Lens Clip on Flip up Blue Light Blocking Glasses JQ4(60MMX50MM) feed-color-Black/Purple/Transparent Lens Size: 60mm Width x

Lens Size: 60mm Width x 43mm Height (2

Acrylic lens

plastic frame with spring hinges

Temple length about 5 7/16 inches (135mm)

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Red Lens Clip on Flip up Blue Light Blocking Glasses JQ4(60MMX50MM) feed-color-Black/Purple/Transparent Lens Size: 60mm Width xIdeal for nighttime screen use, late night reading, or pre sleep relaxation, these glasses protect your eyes and help you fall asleep faster and wake up refreshed. Acrylic lens, only perfect fit same size eyeglasses Frame width about 5. 12 inches (130mm) Lens width about 2. 37 inches (60mm) Lens height about 1. 97 inches (50mm) Bridge (DBL) about 0. 59 inches (15mm) Ultimate Blue and Green Light Blocking: Red lenses filter out 100% of sleep disrupting