UV 400 protection is treated to block ultraviolet rays below 400nm which can promote skin aging and cause cornipitis. Recommended for children ages 4 to 14 years old. Fashionable glasses that can be enjoyed by a little grown. Perfect for the beach or leisure. Also as an accessory for moms chest; A wide selection of selections to suit your mood in todays day! The large red dots also protect your face from UV rays.