Features: Blue Light Blocking: Kid's glasses for daily use when kids using a computer smart phone. Our glasses can cut harmful blue light. Reduce eyestrain and headache. Protect children's eyesight. Quality Material:The frame is made of high quality ultra-light and Clear TR90 material which makes the appearance more shiny fashionable and does not cause allergies. Protect Eyesight And Improve Sleep: Our glasses block blue light and protect the eyes from screen vision syndrome and reduce eye fatigue. Protect your child's eyes from irreversible tissue damage with ANTI-RADIATION technology. Stylish and Cute:Designed in a fashionable and cute shape it will not only protect your child's eyesight but also make your child more beautiful after wearing it. so you don't have to worry about your child not liking it. Intimate Service: Please feel free to contact us we are ready to help. If you confront any problems about our products we will solve your problems as soon as possible. Specification: Material:Tr90andACandSilicone Glasses Total Width:130mm Glasses Leg Length: 137mm Mirror Height: 47mm Single Lens Width:50mm Nasal Spur:16mm Weight:20g Notes: 1. Due to the lighting effects and shooting angles there is a color difference in the product please understand. 2. Due to manual measurement there is a tolerance in the product size. includes: 1xglasses "