The Alfven series Full Rim eyeglasses are made of high-quality acetate materials, and each style is carefully designed and detailed to show a distinctive Butterfly style. In addition to the Tortoise color, this series also offers a variety of different color-matching styles, so you can choose the most suitable glasses according to your needs and preferences. Eyeglass lenses also use a variety of different processes and materials, such as anti-blue light, anti-radiation, progressive, etc., to meet different vision needs and use occasions. PS: There might be some visual differences due to different lights in sunlight and screen. Random floral patterns may differ from pictures. Goods shall in kind Prevail.