Discover the world through crystal lenses with Shuangyisheng Jewelry's 'Cooling Season' Collection. Shuangyisheng, established since 1911, is a trusted jewelry brand with a history of 105 years. Their commitment to quality and service is evident in their 'Deeds with Morality, Beauty with Benevolence' philosophy. The collection features natural crystal eyewear sourced from the East China Sea, offering a precious and protective experience. Crafted from the hard and brittle crystal, these eyewear pieces are not just optical devices but also precious gems with a refractive index of 1.544-1.553, providing strong eye protection. Experience the unique charm of Shuangyisheng's crystal eyewear, brought to life with the power of eqxiu.com's online design tools and diverse templates for quick creation.