Lens width: 2 inches, Lens height: 45mm/1.77" inches Material: PC frame, AC lens, non-polarized, UV level: UV400, visible fluoroscopy: 90%, can effectively resist ultraviolet ray and protect baby's eyes Feature: The Heart Shaped design makes your child look more lovely, which is a surprise for your child and will stimulate their interest in wearing these glasses Durable Enough: With flexible rubber frames impact shatter-resistant lenses, these shades won't break when you bend, twist, or step on them