Designed and molded exclusively for theAcer Aspire 5 15 A515-54 A515-54G A515-44/Aspire 5 15 A515-55 A515-55G/Aspire 3 15 A315-23 A315-55G A315-44/Aspire 1 15 A115-31Acer Aspire 5 15 A515-54 A515-54G A515-44/Aspire 5 15 A515-55 A515-55G/Aspire 3 15 A315-23 A315-55G A315-44/Aspire 1 15 A115-31Acer Aspire 5 15 A515-54 A515-54G A515-44/Aspire 5 15 A515-55 A515-55G/Aspire 3 15 A315-23 A315-55G A315-44/Aspire 1 15 A115-31It 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 of time.