Made from refined nylon fiber, environmental TPU, and PC materials, the NILLKIN case is tough and durable. The surface with a 3D texture design is wear-resistant, anti-skidding, dust-proof, and anti-fingerprint. The torsion spring lens cover is adopted, and the built-in special-shaped torsion spring device makes the opening and closing of the semi-automatic lens cover more smooth, prevents the lens from scratching, and protects the privacy. The surface is woven with selected nylon fiber material, which is wear-resistant, scratch-resistant, fingerprint-proof, soft and comfortable to the touch.