1. Heat insulation: imported high heat-resistant makrolon materials to reduce the scorch feeling after your MacBook working a long time. 2. Anti-scratch: hard coating in the surface, not easily scratched. 3. Protection: 100% matches your MacBook and protects it away from the external hosts erosion. 4. No residue: high-tech plastic gum, good fitting without bubbule, and without any traces after repeated pasting. 5. Simplicity: metal embossing on the surface, makes it integrated with your MacBook.