SAFE MATERIAL - We firmly believe that safety is the most important thing for our children. The kids sunglasses are made of high quality imported food grade rubber TPE, which ensures it is non-toxic and harmless to the kids when they wear it or put it in their mouth. POLARIZED LENS - Reduces the brightness of shiny surfaces drastically and reduces glare. Effectively protects your children's eyes from long-term UV damage by blocking 100% of harmful UVA and UVB rays. Babies and kids can better enjoy the UV-free period if you take them outside. COMFORTABLE MOURNING EXPERIENCE - Soft, lightweight and flexible frame enhances comfort for kids. The auto-adjusting temples allow the sunglasses to fit any child's face and not put pressure on them. ENCOURAGE MORE INTEREST IN OUTDOOR ACTIVITIES. The great styles and wide range of colors inspire children's inspiration and increase their willingness to participate in outdoor activities.