Jewelry Design Bridgeside Eyeglass Frame by Hongwei Li This design is made of titanium alloy and resin through 3D printing. The pivot-joint screwless hinge (patent pending) hidden in the front frame reduces the assembly relationship, which is convenient for users to wear and keep and makes the product unique and integrated. The outer side of the temples and the front surface of the frame are designed with radial textures, which improves the strength of the frame and makes it have a recognizable aesthetic.