1. Material: viscose material 2. Laser integrated cutting process, each rounded corner is accurately aligned 3. Anti-dust, anti-scratch, prevent dirt 4. Air guide design, eliminates air, and fits more easily 5. Hardened treatment, abrasion and scratch resistance 6. Using composite material, non-toxic, no peculiar smell, safe and healthy 7. The surface is treated with SMART process, wear-resistant and scratch-resistant