Designed and molded exclusively for theLenovo ThinkPad E15,Case for Acer Chromebook 315 CB315-5H CB315-5HT/Chromebook 315 CB315-4H,Case for ASUS VivoBook Flip 15 TP510UALenovo ThinkPad E15,Case for Acer Chromebook 315 CB315-5H CB315-5HT/Chromebook 315 CB315-4H,Case for ASUS VivoBook Flip 15 TP510UALenovo ThinkPad E15,Case for Acer Chromebook 315 CB315-5H CB315-5HT/Chromebook 315 CB315-4H,Case for ASUS VivoBook Flip 15 TP510UAIt adopts a full inner lining design, and its size and port holes are consistent with the universal model., eliminating the sway and offset issues found in universal models, providing exclusive protection for your laptop. Heat-dissipating lining protects laptop performance: The lining is made of a breathable, heat-dissipating material that reduces heat buildup during laptop operation. This prevents the laptop from stuttering due to overheating. This combines protection with stable device function, making it ideal for people who work on their laptop for long periods