Available Lens Magnification Strengths: 1.00, 1.25, 1.50, 1.75, 2.00, 2.25, 2.50, 2.75, 3.00, 3.25, 3.50. Available Colors: Red, Blue, Dark Green, Dark Red, Black, Tortoise. PLASTIC FRAME: This men and women frame features a round style. ACRYLIC LENSES: These fully magnified lenses have lightweight, plastic lenses. Includes a free microfiber cleaning carrying case. PRODUCT DIMENSIONS AND FEATURES: Narrow Fit. Frame Width: 124 mm, Frame Height: 37 mm, Temple Length: 140 mm, Bridge Width: 21 mm. This round frame features spring hinges for a comfortable fit. These fully magnified lenses are very lightweight. Full frame, designer, trendy, durable, strong, long lasting reading glasses at an inexpensive price. The Studio specs are so lightweight and airy that you will forget you are even wearing them. Why Spring Hinges? These hinges are equipped with a small spring that affords the arms a greater range of movement and does not limit them to the traditional 90-degree angle. These hinges provide greater comfort for the wearer and are more able to withstand everyday use. Spring Hinges are better for physical activity. Round glasses are an excellent choice for individuals with prominent cheekbones, sharp angles, a narrower forehead, and an angular jawline. Who Should Use Reading Glasses? Anyone who has trouble seeing things up close can benefit from wearing reading glasses. They are particularly useful to individuals over the age of 40 because your eyes lose their ability to focus on close-up objects. The Studio Reading Glasses have a fully magnified lens, they are NOT bifocals. The Studio Round Style Reading Glasses, Unisex Retro Readers with Spring Temples for Men and Women are full framed reading glasses with a rounded frame and small metal accents. These cheaters are a great choice for anyone who likes to stand out in a crowd. The Studio clear lens eyeglasses have a round frame shape in a variety of colors that you can't pass up. These circle specs feature spring hinges for added comfort. The Studio Round Style Reading Glasses, Unisex Retro Readers with Spring Temples for Men and Women are full framed reading glasses with a rounded frame and small metal accents. These cheaters are a great choice for anyone who likes to stand out in a crowd. The Studio clear lens eyeglasses have a round frame shape in a variety of colors that you can't pass up. These circle specs feature spring hinges for added comfort.