The main requirements of plastic for spectacle frames are multiple colors, light texture and various styles. For wearers，the durability and impact resistance of plastic spectacle frames are the most basic requirements. PA12 and PPSU sold by our company can be processed with different other plastics into double splicing spectacle frames to produce various colors and lighter weight spectacle frames. In addition, the PA12 elastomer of our company has a variety of hardness and high resilience performance which can prevent the breakage of glasses caused by accidental damage and will not produce harmful substances when it contact with skin or sweat to cause body injury. These advantages improve the comfort and safety of children wearers, and make it the preferred plastic material in the field of children's glasses.