The Cressi Crab Kids Goggles are Sophisticated Silicone Goggles Specifically Designed for Children Ages approximately between 3 and 7 years. Goggles have completely Flat Polycarbonate Lenses for Perfect Vision even at the Edges. Your Child will be Safe Wearing this Shatterproof Lens with 100% UV Protection from the Suns Harmful Rays. Built-to-Last with Scratch-Resistant External Treatment these Goggles are the perfect choice for Swimming Lessons. Vision will always be Crisp-and-Clear with the Internal Lens Surface Anti-Fog Coating. The Crab Kids Goggles use Cressi's High Technology for a Perfect-Fit on most Facial Profiles with High Comfort. The Split Head Strap with Patented Buckles with Micrometric Adjustment for Quick and Easy Strap Adjustment will just get that youngster in the water faster. Goggles are covered by a 12 month limited warranty.