The frame features a thick construction, suggesting durability and sturdiness. The rectangular shape of the frame adds a modern touch to the design, offering a sleek and stylish appearance. The blue light filter feature implies that the lenses are specially treated to block or reduce the amount of blue light entering the wearer's eyes, helping to minimize eye strain, fatigue, and potential sleep disruptions caused by prolonged exposure to digital screens. These thick rectangle blue light filter sunglasses are a practical and trendy accessory for individuals who spend significant time in front of digital screens and wish to protect their eyes from the potential negative effects of blue light.