Our high-quality lenses block 99.9% of both UVA and UVB radiation. UV400 rated sunglasses are crucial for filtering out sunlight and protecting your child's eyes against long-term UV damage during outdoor activities. Crafted from high-quality plastic frames, UV400 protection lenses, and reinforced metal hinges, our sunglasses ensure long-lasting durability for active toddlers and kids. Our sunglasses are designed for children aged 3-6 years. However, many of our customers love using them for younger toddlers in photos. Please ensure that young children are supervised while wearing the sunglasses.