Use environmental pc materials. Formed by the highly precise injection molding machine with high temperature. Both sides use then dustless matte uv painting technology, with comfy sense of touch and elegant appearance. The rigidity is good enough not to transfer and break off easily. Open mold according to real mobile phone with precise function holes. You can handle as as you wished. The surface uses salient point design, wear-resistant, anti-skidding, dust-proof, anti-fingerprint and easy to clean.