Food grade rubber (non-toxic and harmless) frame frame Composite lens, bat shape Polarization Anti-UV Coating Paint Safety Materials - We firmly believe that safety is the most important thing for our children. Children's sunglasses are made of high-quality imported food-grade rubber TPE to ensure that they are non-toxic and harmless to children's mouths when they are worn or put in. 100% UV400 Polarized Lenses - Dramatically reduces the brightness of glossy surfaces and helps reduce glare. Effectively protect your child's eyes from long-term UV damage by blocking 100% of harmful UVA and UVB rays. Babies and kids can enjoy UV rays - free time is even better when you take them outdoors. Comfortable Wearing Experience - Soft, light and flexible frame improves children's wearing comfort. The self-adjusting temples allow the sunglasses to perfectly fit any child's face without any pressure to wear.