Childrens lanterns with 100% UV protection. Because the frame is made of premium non-allergenic silicone, it is especially suitable for children. The silicone, adjustable length headband fits perfectly into the face and prevents water from entering the inside of the glasses, sticking to the head and slippery. Lenses made of polycarbonate, UV protection, non-corrosive. Certified BS 5883: 1996.